Chpt. 47 Final 8/27/99 11:50 AM Page 47.2 to Lasers Introduction Laser Accessories Overview Diode-Pumped Solid State-Lasers
Melles Griot offers a wide range of laser accessories. From cylin- The chart below shows how these products can be used. Please drical laser holders, adaptors, and alignment components to optic contact a Melles Griot applications engineer for assistance with and fiber-optic assemblies, this family of laser accessories is designed your special requirements. to ensure that you get the most from your laser. Lasers 09 LBC series compact beam expanders
Ion and Helium Cadmium 09 LSL series 09 LSP focusing series optics pinholes
cylindrical HeNe lasers 09 LSF 011 09 LAR 001 spatial filter 09 LCM series 09 LAM series collimators accessory adapters Helium Neon Lasers
small diameter cylindrical HeNe lasers 09 LLG 001 09 LBM series laser line precision laser generator beam expanders 09 LAR 003 09 LAR 005 Diode Laser Assemblies
compact self contained 09 LBX series HeNe lasers standard laser beam expanders
09 LBV 001 zoom beam expander Laboratory Laboratory Diode Laser Drivers
argon-ion, YAG, or blue HeCd lasers 09 LAM series 09 LBZ series large-aperture accessory adapters beam expanders
47.2 1 Visit Us OnLine! www.mellesgriot.com Laser Accessories Chpt. 47 Final 8/27/99 11:50 AM Page 47.3
Available in:
✔ Production Quantities Introduction to Lasers ✔ Custom Sizes
Laser Beam Expanders Solid-State Lasers Diode Pumped
Standard Laser Beam Expanders SPECIFICATIONS: STANDARD LASER BEAM EXPANDERS
Wavelength Range: 450–750 nm Ion and Helium Cadmium Many applications of helium neon and other visible lasers require the beam to be expanded for uniform illumination of a Recommended Maximum 1/e2 Beam Diameter: 1.0 mm large area. Melles Griot has developed this cost-effective range Input Aperture: 2.5-mm diameter Lasers of beam expanders that are guaranteed to produce 1l or less of Wavefront Distortion: <1l (p-p) at 632.8 nm peak-to-peak wavefront distortion. Transmission: >95% $ Cost-effective and ideal for illuminating a large area Coating: HEBBAR™ /078 (See Chapter 5, Optical Coatings) $ Designed for broadband applications from 450 to 750 nm Housing Material: Black-anodized aluminum $ ! Expansion ratios to 20 with 1l (peak to peak) or less of Mounting: 1 inch–32 TPI wavefront distortion Helium Neon Lasers $ Far-field focusing adjustable from 3 m to infinity. Standard Laser Beam Expanders $ Direct mounting onto any Melles Griot 44.5 mm diameter Expansion Exit Aperture Minimum Focus PRODUCT cylindrical helium neon laser head with 4–40 on 36 mm Ratio (mm) Distance (m) NUMBER bolt pattern 5! 5.0 3 09 LBX 001 $ Adaptor ring product number 09 LAR 001 included 10! 10.0 3 09 LBX 003 (see page 47.16). 20! 20.0 3 09 LBX 005 Diode Laser Assemblies threaded 1-inch–32 TPI expander lens collimating lens system
f27 fD fA Diode Laser Drivers Laboratory mounting ring focusing ring B
thread ID M33 x 0.5 PRODUCT 2.0 mm depth on NUMBER fA B fD 09 LBX 001 only 09 LBX 001 38 50 12.0 09 LBX 003 39 83 25.0 09 LBX 005 47 136 33.3 dimensions in mm Laser Accessories
09 LBX standard laser beam expanders (09 LAR 001 adaptor ring included)
Visit Us Online! www.mellesgriot.com 1 47.3 Chpt. 47 Final 8/27/99 11:50 AM Page 47.4 to Lasers Introduction Diode-Pumped Solid State-Lasers
Precision Laser Beam Expanders SPECIFICATIONS: PRECISION LASER BEAM EXPANDERS Melles Griot precision laser beam expanders produce peak-to- Wavelength Range: 450–750 nm peak wavefront distortion of less than l/4 in expansion ratios of Recommended Maximum 1/e2 Beam Diameter: 1.0 mm 3!, 10!, 20!, or 30!. The Galilean design shortens overall Input Aperture: 2.5-mm diameter length and improves performance by minimizing spherical aber- Wavefront Distortion: Lasers ration. A padded hardwood box is included for safe storage. Transmission: >95% $ Larger output beams with reduced beam divergence for ™ holographic and other distant illumination applications Coating: HEBBAR /078 (see Chapter 5, Optical Coatings) Ion and Helium Cadmium $ Available for broadband applications from 450 to 750 nm Housing Material: Black-anodized aluminum $ Optimized for 1-mm-diameter input beams Mounting: 1 inch–32 TPI $ Far-field focusing from 3 m to infinity Precision Laser Beam Expanders $ Directly mounts to 09 LAM 001 or 003 series adjustable Minimum Focus alignment adaptors see page 47.16. Expansion Exit PRODUCT Ratio Aperture Distance (m) NUMBER 3! 3.0 3 09 LBM 011 10! 10.0 3 09 LBM 013 Helium Neon Lasers 20! 20.0 5 09 LBM 015 30! 30.0 10 09 LBM 017 threaded expander lens collimating lens system 1-inch–32 TPI fD f27 f44 Diode Laser Assemblies 5 focusing ring 9.5 B (varies with focal setting) Laboratory Laboratory PRODUCT B NUMBER min max fD Diode Laser Drivers 09 LBM 011 75.0 82 10 09 LBM 013 92.0 99 10 09 LBM 015 117.5 124 20 09 LBM 017 162.5 169 30 dimensions in mm 09 LBM precision laser beam expanders 47.4 1 Visit Us OnLine! www.mellesgriot.com Laser Accessories Chpt. 47 Final 8/27/99 11:50 AM Page 47.5 Introduction to Lasers Solid-State Lasers Diode Pumped Nd:YAG and Argon-Ion Laser Beam SPECIFICATIONS: ND:YAG AND ARGON-ION LASER BEAM EXPANDER Expanders Ion and Helium Cadmium Wavefront Distortion: krypton argon ion, Nd:YAG, and frequency-doubled Nd:YAG. Lasers Housing Material: Black-anodized aluminum $ Broadband multilayer dielectric coatings for visible or near- Mounting: 1-inch–32 TPI, female infrared laser wavelength 1-inch–32 TPI male with C-mount adapter (included) $ Compatible with high-power laser systems (see damage- threshold table) Nd:YAG and Argon-Ion Laser Beam Expanders Damage Threshold $ Post mounting achievable with the 07 HLM 001 C-mount holder (see page 47.16). Test Wavelength Pulsed CW Helium Neon Lasers Visible (at 532 nm) 3.8 J/cm2 in 13 ns 70 kW/cm2 Near-IR (at 1064 nm) 6.5 J/cm2 in 20 ns — Note: There is no implied warranty. Nd:Yag and Argon-Ion Laser Beam Expanders Input Aperture Maximum Input Beam* Exit Aperture Length L** Minimum Focus Distance PRODUCT Expansion Ratio (mm) 1/e2 (mm) (mm) (mm) (m) NUMBER Visible: 532 nm 3! 7.32 4.83 22.0 135.0 1.5 09 LBZ 001 Diode Laser Assemblies 6! 3.96 2.41 22.0 135.0 2.1 09 LBZ 003 10! 2.50 2.20 22.0 169.0 2.5 09 LBZ 010 Near-IR:1064 nm 3! 7.32 4.83 22.0 135.0 2.0 09 LBZ 101 6! 3.96 2.41 22.0 135.0 2.3 09 LBZ 103 10! 2.50 2.20 22.0 169.0 2.5 09 LBZ 110 *For diffraction-limited output. **Length at 1064 nm. threaded 1-inch–32 TPI C-mount adapter Diode Laser Drivers Laboratory f39.1 f27 f39.1 f31.7 f22.22 f22 5 59.4 9.5 12.7 3.8 L dimensions in mm Laser Accessories 09 LBZ argon-ion and Nd:YAG laser beam expanders Visit Us Online! www.mellesgriot.com 1 47.5 Chpt. 47 Final 8/27/99 11:50 AM Page 47.6 to Lasers Introduction Diode-Pumped Solid State-Lasers Zoom Beam Expander SPECIFICATIONS: ZOOM BEAM EXPANDER Beam Expansion Range: 2.5!–10!, at 632.8 nm The Melles Griot zoom beam expander is ideal for visible, near-IR, and tunable sources. The focus ring is used to collimate the Wavelength Range: 540–750 nm input beam, and the zoom ring then allows adjustment of the output Recommended Input Beam Diameter (1/e2): ≤1.5 mm ! ! beam diameter, from 2.5 to 10 . Input Aperture: f4 mm Lasers $ Broadband multilayer antireflection coatings from 540 to 750 nm Exit Aperture: f25.6 mm $ Variable laser beam expansion ratio from 2.5! to 10!, at 632.8 nm Wavefront Distortion: Zoom Beam Expander Weight: 1.0 kg (2.2 lb) Input Exit Minimum Helium Neon Lasers Zoom Beam Expander Mounting Stand Expansion Aperture Aperture Focus PRODUCT Ratio (mm) (mm) Distance (m) NUMBER PRODUCT 2.5!–10! 4 25.6 2.0 09 LBV 001 Mounting NUMBER Compatible with inch and metric hole patterns Note: The zoom beam expander is shown above with optional 07 HBZ 001 07 HBZ 001 mounting stand. zoom locking knob focus locking set screw Diode Laser Assemblies threaded zoom ring focus ring 1-inch–32 TPI f27 f25.6 f60 Laboratory Laboratory Diode Laser Drivers 5 100 1 hole threaded M6 9.5 215 dimensions in mm 09 LBV zoom beam expander 47.6 1 Visit Us OnLine! www.mellesgriot.com Laser Accessories Chpt. 47 Final 8/27/99 11:50 AM Page 47.7 09 LBX 001 Introduction to Lasers 09 LLG 001 Solid-State Lasers Diode Pumped OEM Compact Beam Expanders Laser Line Generator Ion and Helium Cadmium These compact beam expanders are ideal for OEM applica- Laser line generators are ideal for measurement, alignment, and tions. The wavefront distortion is less than l/2 (peak to peak) at 632.8 visual-inspection applications. nm, and these beam expanders can be mounted directly to any $ They can be mounted directly to the focusable 09 LBX 001 Lasers Melles Griot 44.5-mm-diameter cylindrical helium neon laser head. beam expander for line-width optimization from 3 m to infinity. $ The mounting flange provides integral Y and Z translation, as $ They can be used with the entire range of 44.5-mm-diameter well as minor angular adjustment. cylindrical helium neon laser heads. $ Focus adjustment is accomplished by rotating the focusing $ The adjustable aperture creates a finer edge line. barrel. $ Line axis can be controlled by manually rotating the internal $ Set screws lock focus adjustment permanently in place after lens element and locking it in place. adjustment is made. Helium Neon Lasers $ Diffraction-limited spot sizes (1/e2 points) are < 1.1 mm for 4! and < 0.57 mm for 8!. d $ line projector Optics are MgF2 antireflection coated for the visible. SPECIFICATIONS ° laser head a D fan half angle (a): 26.5 working distance (L): 1 m line length (D): 500 mm max: 57.9 44.1 L 22.2 Diode Laser Assemblies 30.2 Laser line generator working parameters f7 16.6 Input Beam Diameter (1/e2) mm Line Width (d) mm 0.75 1.080.2 focusing barrel 0.80 1.080.2 4 holes f3 thru 1.02 1.080.2 counterbored 4 holes threaded f4.8 ! 3 deep 10-32 thru on 36 circle M3 nylon-tip set screw Diode Laser Drivers dimensions in mm f38 Laboratory 09 LBC OEM compact beam expanders M3 hex M33 x 0.5 head screw f6 rod lens OEM Compact Beam Expanders 2.8 19 Input Exit Minimum dimensions in mm Expansion Aperture Aperture Focus PRODUCT Ratio (mm) (mm) Distance (m) NUMBER 09 LLG laser line generator 4! 2.5 7.0 0.6 09 LBC 001 8! 2.5 7.0 0.6 09 LBC 003 PRODUCT NUMBER Laser Accessories Laser Line Generator 09 LLG 001 Visit Us Online! www.mellesgriot.com 1 47.7 Chpt. 47 Final 8/27/99 11:50 AM Page 47.8 Available in: ✔ Production Quantities ✔ Custom Sizes to Lasers Introduction Unmounted Beam-Expander Lenses Diode-Pumped Solid State-Lasers Melles Griot offers a selection of unmounted lenses designed for SPECIFICATIONS: UNMOUNTED BEAM-EXPANDER LENSES use in a Keplerian telescope configuration (two positive lenses and ± Back Focal Length (fb): 0.5% a real, internal image). These beam-expander lenses are available in four expansion ratios: 5!, 10!, 20!, and 50!. The first three Useful Wavelength Range: ! ! ! ! expanders are made up of an input lens and an output lens. The 50! 5 , 10 , and 20 : 488–950 nm; 50 : 600–950 nm expansion ratio uses a different input lens and an air-spaced output Surface Accuracy: 2l at 632.8 nm over 90% of diameter Lasers doublet. Centration: 3 arc min Diameter Tolerance: +0.0, 50.1 mm Ion and Helium Cadmium BEAM-EXPANDER LENS SET Maximum Entrance Pupil Diameter: 2.0 mm A convenient beam-expander set is available, which Edge Thickness Tolerance: ±0.2 mm includes one input lens and the 5!, 10!, and 20! Surface Quality: 40–20 scratch and dig output lenses. Antireflection Coating: Unmounted Beam-Expander Lens Sets Single-layer MgF2 (/066) all surfaces Description PRODUCT NUMBER 5! – 20! Expander Set 01 LBX 011 Helium Neon Lasers Unmounted Beam-Expander Lenses Lens Input Lens Output Lens Separation Expansion f1 fb te1 f2 te2 B PRODUCT Ratio (mm) (mm) (mm) (mm) (mm) (mm) NUMBER 5! 5.1 9.5 1.1 17.0 2.2 59.3 01 LBX 001 Diode Laser Assemblies 10! 5.1 9.5 1.1 32.0 3.8 109.7 01 LBX 003 20! 5.1 9.5 1.1 62.2 2.7 214.5 01 LBX 005 50! 7.1 46.6 2.9 111.8 * 274.0 01 LBX 007 *This lens is a mounted air-spaced doublet. output lens input lens Laboratory Laboratory Diode Laser Drivers Dout f2 f1 Din fb te1 B te2 01 LBX unmounted beam-expander lenses 47.8 1 Visit Us OnLine! www.mellesgriot.com Laser Accessories Chpt. 47 Final 8/27/99 11:50 AM Page 47.9 Available in: ✔ Production Quantities Introduction to Lasers ✔ Custom Sizes Laser Collimators Solid-State Lasers Diode Pumped Melles Griot 25-mm and 50-mm-aperture laser collimators pro- SPECIFICATIONS: LASER COLLIMATORS vide diffraction-limited performance with wavefront distortion of Wavelength Range: 450–750 nm* Ion and Helium Cadmium less than l/8 (peak to peak) over 90% of full aperture. The broad- Focusing Range: 2 m to infinity band design, optimized from 488 nm to 633 nm, provides adjustable focus from 2 m to infinity. Wavefront Distortion: threaded 1-inch–32 TPI Laser Collimators Maximum Output Focal f25 Beam Diameter Length Minimum PRODUCT f44.45 (mm) (mm) f-number NUMBER 25.0 101.5 4.1 09 LCM 011 50.0 209.8 4.5 09 LCM 013 Diode Laser Assemblies 92.76 dimensions in mm 09 LCM 011 laser collimator threaded 1-inch–32 TPI Diode Laser Drivers Laboratory f50 f44.3 f67.0 218.1 dimensions in mm Laser Accessories 09 LCM 013 laser collimator Visit Us Online! www.mellesgriot.com 1 47.9 Chpt. 47Final8/27/9911:50AMPage47.10 Laser Accessories Laboratory Diode Laser Assemblies Helium Neon Lasers Ion and Helium Cadmium Diode-Pumped Introduction Diode Laser Drivers Lasers Solid State-Lasers to Lasers Ch $ $ $ $ enables: 47.10 Spatial Filters available separately) 09 LSF011spatialfilter(focusingopticandpinholeassembly w (09 LSLseries)andprecision mountedpinhole(09LSPseries), SPATIAL ASSEMBLY FILTER Spatial Filter (includeshardwoodstoragebox) f dimensions inmm hich a 1-inch–32 TPI 27 five focusing opticsandpinholes. Supplied inaprotective storage box that willalsoholdupto Easy mountingtolaserheadsandcollimating optics maximum transmission Precise focusing ofalaserbeamontothepinholeplanefor focused beam,with6mmadjustmentintheYandZaxis Easy andprecise positioningofapinholeat thecenterof a Melles Griotoffers additional spatial filterassemblies in The spatial filterassembly, madeofblack aluminum, anodized This modularassembly holdsaninterchangeable focusing optic pter threaded r e 29, 1 a v Mic ail post adapter 11.0 9.5 a b r oscope Component le sepa 2 axispinholeadjustmentknobs90 91.4 r a te l y anddescribedonp focus ringM6 threaded s , SpatialFilte 19.0 09 LSL focusing optic PRODUCT NUMBER r a s and ge 47.11. 09 LSP assembly pinhole 5 ° A 09 LSF011 apart pe f r 63.2 tu r e s . Beam diameterselectionchart Spatial Filter SELECTING ASPATIAL FILTER/ 5. Usean09LAM001adjustableaccessoryadaptorto 4. Selectapinholefromtheselectioncharton Use thegraphs to determinethefocallengthof 3. 2. Knowingtheinputlaserbeamdiameter, usethe 1. Determinethedesiredcollimatedoutputbeam COLLIMATOR COMBINATION OUTPUT BEAM DIAMETER (mm) ensure properbeamcentration. align thespatialfilterassemblywithbeamto following page. diameter. input focusinglensforthedesiredoutputbeam 50-mm collimatorisneeded. graphs abovetodeterminewhethera25-mmor diameter. 25.0 10.0 20.0 10.0 20.0 30.0 50.0 2.0 4.0 6.0 8.0 2.0 4.0 6.0 4-mm focal length 56.8 .2 6-mm focal length 37.9 .2 Visit UsOnLine! 8-mm focal length 28.4 4-mm focal length 25.3 INPUT BEAMDIAMETER(mm) INPUT BEAMDIAMETER(mm) 12-mm focal length 18.9 6-mm focal length 16.9 16-mm focal length 14.2 8-mm focal length 12.7 12-mm focal length 8.4 16-mm focal length 6.3 4. 81020304.0 3.0 2.0 1.0 .8 .6 .4 4. 81020304.0 3.0 2.0 1.0 .8 .6 .4 ! ✔ ✔ ! ! Available in: Custom Sizes ! Production Quantities ! ! ! ! www.mellesgriot.com ! ! 09 LCM011 09 LCM013 Chpt. 47 Final 8/27/99 11:50 AM Page 47.11 Introduction to Lasers Focusing Optics and Pinhole Assemblies Solid-State Lasers Diode Pumped FOCUSING OPTICS PINHOLE ASSEMBLIES These optics are designed for use with the Melles Griot Thirteen pinholes are available for matching the aperture to the Ion and Helium Cadmium 09 LSF 011 spatial filter on page 47.10 to provide a focused beam diameter of the focused laser beam. at the pinhole plane. Choose a focusing optic that will accept a beam Each pinhole is provided in an aluminum assembly that mounts from 30% to 50% larger than your laser beam to avoid truncation into the 09 LSF 011 spatial filter on page 47.10. The pinholes are Lasers of the Gaussian distribution. precisely laser drilled in 0.013-mm stainless steel (0.0025-mm To obtain a smooth cone of light with the desired numerical stainless foil for pinholes 2 mm and smaller). All pinholes are excep- aperture, use the graph below to choose focusing optics. The 1/e2 focal tionally round and free from edge defects. spot radius (w) can be calculated from the following formula: Pinhole selection is directly related to spot size. We recommend using a pinhole with a diameter of about two times the 1/e2diameter w = lf/pw0 at focus. To select an appropriate pinhole for use with most red where helium neon lasers, refer to the chart below. Helium Neon Lasers l = wavelength, f = focal length of the focusing optic, and 2 w0 = input beam radius (1/e ). If the spatial filter is to be used with a collimator, first select the Pinhole Selection Chart, l = 632.8 nm collimator and focusing optic using the graphs on the previous Focusing Pinhole Diameter (mm) page and the table below, then select the pinhole using the table at Optics Input Beam Diameter (1/e2) the right. 0.6 mm f0 (mm) 0.8 mm 1.0 mm 4.0 10 8 6 6.0 15 12 10 Diode Laser Assemblies 4 mm .42 8.0 20 15 12 .38 spatial filter 12.0 30 25 20 focal lengths 6 mm .32 16.0 40 30 25 .24 8 mm .16 12 mm NA OF OUTPUT .08 Pinhole Assemblies 16 mm 0 0 .5 1.0 1.5 2.0 Diameter (mm) PRODUCT NUMBER INPUT BEAM RADIUS, w (mm) 2.0 09 LSP 001 3.0 09 LSP 003 Diode Laser Drivers Focusing optics selection chart 4.0 09 LSP 005 5.0 09 LSP 007 Laboratory Focusing Optics 6.0 09 LSP 009 Focal Maximum Wavelength 8.0 09 LSP 011 10.0 09 LSP 013 Length f0 Aperture Range PRODUCT (mm) (mm) (nm) NUMBER 12.0 09 LSP 015 4.0 1.6 450–750 09 LSL 001 15.0 09 LSP 017 6.0 2.4 450–750 09 LSL 003 20.0 09 LSP 019 8.0 3.2 450–750 09 LSL 005 25.0 09 LSP 023 Laser Accessories 12.0 4.8 450–750 09 LSL 007 30.0 09 LSP 025 16.0 5.0 450–750 09 LSL 009 40.0 09 LSP 027 Visit Us Online! www.mellesgriot.com 1 47.11 Chpt. 47 Final 8/27/99 11:50 AM Page 47.12 Available in: ✔ Production Quantities ✔ Custom Sizes to Lasers Introduction Shear-Plate Collimation Testers Diode-Pumped Solid State-Lasers Melles Griot shear plate collimation testers can be used to set the divergence/convergence of a laser collimating system to less than 20 mrad (full angle). These testers can also be used to measure wavefront radius of curvature, determine wavefront symmetry, and measure the power of long-focal-length optics. $ Testers can be used at all wavelengths in the visible spectrum. Lasers $ They test collimation at beam diameters from 5 to 85 mm. diverging collimated converging $ Both 1/4-20 and M6 threaded mounting holes are included. beam beam beam Ion and Helium Cadmium $ The beam is collimated when the fringes are parallel to the Fringe orientation with respect to reference line reference line. Each shear plate module consists of a wedged, uncoated optical flat mounted in a black aluminum cube complete with high-visibility SHEAR-PLATE THEORY viewing screen, and a collimation reference line. To collimate an expanded laser beam, the module is inserted in the beam and the A shear plate is a very simple interferometer, i,e, an collimator is adjusted until the fringes observed on the screen are optical arrangement that combines two wavefronts. parallel to the reference line. All Melles Griot shear plate modules Constructive and destructive interference between Helium Neon Lasers follow the same sign convention: a convergent beam produces a the two wavefronts leads to a series of light and dark clockwise rotation of the fringes on the screen relative to the reference fringes, corresponding to in-phase and out-of-phase line, while a divergent beam produces a counterclockwise rotation portions of the wavefronts. (see figure to the right). The high-visibility viewing screen makes it Shear plates are thick, high-quality optical flats. unnecessary to use low ambient lighting to observe the fringes. The wavefront or beam to be tested is incident on These shear plates can be used at any wavelength within the visible the shear plate at a 45 degree angle for maximum spectrum. sensitivity. The uncoated front and rear surfaces generate reflections of almost equal intensity. These reflected wavefronts are said to be “laterally sheared,” i.e., offset with respect to each other, Diode Laser Assemblies because of the finite thickness of the plate. Interference occurs in the region where the wavefronts overlap. Shear-Plate Collimation Testers Minimum Fringe Rotation* Typical** Housing Dimensions Laboratory Laboratory Shear Plate Usable Sensitivity Collimation 8 (mm) Diode Laser Drivers Clear Aperture Beam Diameter ( 2%) Resolution PRODUCT (mm) (mm) (mrad) (mrad) W=D ! H NUMBER 25 5 656 218 44.5 53.8 09 SPM 001 50 10 230 76 76.2 89.2 09 SPM 003 85 15 50 17 127.0 142.2 09 SPM 005 *Defined as full-angle beam divergence or convergence corresponding to a 10% fringe rotation from collimation at 632.8 nm and at full aperture. **Operator-dependent. 47.12 1 Visit Us OnLine! www.mellesgriot.com Laser Accessories Introduction Diode Pumped Ion and Helium Cadmium Helium Neon Lasers Diode Laser Assemblies Laboratory Laser Accessories to Lasers Solid-State Lasers Lasers Diode Laser Drivers 47.13 m) >75% at 632.8 nm >75% at m 46.0 differential thumb screw locking screw 1 f m) m Production Quantities Production Custom Sizes Custom Available in: Available -20 or M6 female threads ✔ ✔ ¼ m fiber core: m 19 focusing adjusting knob 0.45 mm (1 turn = 250 >95% at 632.8 nm >95% at 8 30.5 nominal 10 0.5 mm (1 turn = 150 8 FC <0.18 kg 06 GLC 002, 3 element, f = 8.0 mm 06 GLC x and y axes: 0.9 z axis: 1.0 Post mounting using integral mounting using integral Post Melles Griot cylindrical lasers using to mounts directly on 36-mm circle holes 4 through 45 f Laser to Fiber-Optic Laser Coupler SPECIFICATIONS: LASER TO FIBER-OPTIC COUPLER Connector: Lens: Optical Efficiency: into 10- Coupling Efficiency Adjustment Range: Weight: Mounting: FC connector ws other o 09 LFM 001 PRODUCT NUMBER 37.5 nominal M3 locking set screw ), the modular design all the 06 GLC series the 06 GLC 3.6 thru f www.mellesgriot.com 4 holes on 36 circle Diode Laser Optics 37.5 nominal pter 15, The Melles Griot laser to fiber-optic coupler provides a simple coupler provides to fiber-optic The Melles Griot laser 002 lens (see with a Melles Griot 06 GLC standard Available a Works with all lenses from Works high resolution provide x-y adjustments Differential locking collars on all axes. have All axes fibers. couples into single-mode Efficiently dimensions in mm Visit Us Online! Visit method of capturing and safely delivering collimated laser output. collimated delivering and safely method of capturing FC connector. It is supplied with an Ch 06 as necessary. series lenses to be substituted GLC $ $ $ $ 09 LFM coupler 001 laser to fiber-optic Laser to Fiber-Optic Coupler Laser to Fiber-Optic Chpt. 47 Final 8/27/99 11:51 AM Page 47.13 Page AM 11:51 8/27/99 47 Final Chpt. Chpt. 47Final8/27/9911:51AMPage47.14 Laser Accessories Laboratory Diode Laser Assemblies Helium Neon Lasers Ion and Helium Cadmium Diode-Pumped Introduction Diode Laser Drivers Lasers Solid State-Lasers to Lasers 47.14 dB. ratios ashigh-50 cover glasses, andantireflection coatings andresults inrejection diagram at thelower right,eliminates theindex-matching fluids, the laserbeamintofiberaxis. Thismethod,illustrated inthe minimum, MellesGriotpolishesthefiberat anangleandrefracts For criticalapplications, where fluctuations must beat anabsolute from approximately 4%persurfacetolessthan1%surface. antireflection coating totheendsoffiberreduce reflections its length.There are several solutionstothisproblem. Applying an much as with asingle-frequency laser, outputfrom thefibercanvary as fiber form alow-finesse Fabry-Perot cavity. When thefiberisused systems becausethereflections from theendsofastraight-cleaved BACK REFLECTIONS $ $ $ $ performance. demonstrating ouruncompromising commitmenttooptical laser applications. Theysetthestandard infiber-delivery efficiency, systems are designedtomeetthedemandingneedsofcommercial leaving only two required degrees offreedom. acceptance angle, thesystemisinsensitive toexternal translation, and translation becomestilt.Becausethefiberhasarelatively large tioning. Tiltoftheassembly becomestranslation inthefocal plane, five-axis positioning,prefocused opticsonly require two axes posi- high as80%. factory for optimum performance, withcouplingefficiencies as and apolishedfiberface. Thefiber-to-lens separation issetat the deliver thelaserbeam.Theinput opticsconsistofafocusing lens prefocused inputandoutputoptics, which efficiently collectand limitthebendradius toasafevalue. Thefiberisfittedwith to designed toprotect thefiberfrom strain andcrushingas well as fiber isreinforced withaKevlar andstainless-steel cable that is industrial environment. Single-modeorpolarization-preserving stability. Kinematic launchunit—quicksetupandexcellent long-term Multiwavelength operation Lowest backreflection —lessthan-45dB Highest couplingefficiency —greater than70% Back-reflections are oftenasource ofconcernwithfiber-optic Melles Griot05FDSandFDNfiber-optic laserbeamdelivery Unlike traditional fiber-optic couplingsystems, which require Melles Griotfiber-optic delivery systemsare designedfor areal 1 8 10% as thermal andmechanicalperturbations10% asthermal change output isnotcollimated. systems have akeyed FCconnectorat theoutputend,but the re-collimating opticsintotheassembly. 05FDS/FDN100series FDS/FDN200seriesfiber-optic systemsincorporate output 05 collimating opticalassembly that isintegrated intothefiber. products from othermanufacturers. Allfibersincludeaninput neon, heliumcadmium,andionlaserproducts, aswell aslaser standard 36-mm-diameter boltcircle found onMellesGriothelium kinematic manipulator that attaches with4-40UNCscrews tothe SYSTEM CONFIGURATION significant lossoftransmission. adjustment easy—simply rotate theoptics. There will notbeany tionality isalignedtobetterthan0.5mrad, makingpolarization both inputandoutputopticsare centered sothat theopticaldirec- polarization willbepreserved. Inaddition tosettingthefocus, of thelaserinputisproperly alignedwiththeopticaxes ofthefiber, birefringence inducedby bending,andaslongthepolarization fringence causedby thesesectors ismuch higherthanany stress stress-applying sectorsengineered intothefiber. Theinternalbire- symmetrical andexhibits astrong internalbirefringence causedby the output.Thisresults inpolarization driftandfading. gation that recombine withanuncontrollable phaserelationship at fiber inducesbirefringence. Theoutcomeistwo modesofpropa- through thefiber, but when thefiberisbentorcoiled,stress inthe polarization oftheinputbeamcanbepreserved asthelighttravels symmetrical cross-section. Ifthefiberisperfectly straight, preserving fibers. Standard single-modefibershave acircular, POLARIZATION-PRESERVING FIBERS Delivery Systems Fiber-Optic LaserBeam Angle-polished fiberinputeliminatesback-reflection All ofthesefiber-optic delivery systemsincludeadetachable Polarization-preserving fiber, ontheotherhand,isnotoptically Melles Griotoffers bothsingle-modeandpolarization- input optical assembly prefocussed Visit UsOnLine! ✔ ✔ Available in: Custom Sizes Production Quantities www.mellesgriot.com (low reflection) angle polished alignment 4 axeskinematic Chpt. 47 Final 9/8/99 10:54 AM Page 47.15 Introduction to Lasers Solid-State Lasers Diode Pumped SPECIFICATIONS: Polarization-Maintaining FIBER-OPTIC LASER BEAM DELIVERY SYSTEMS Fiber-Optic Laser Beam Delivery Systems Ion and Helium Cadmium 1 Operating Wavelength : 458-647 nm Output Fiber Length: 2 m Divergence PRODUCT Wavelength (full angle) Features NUMBER Lasers Fiber Protective Jacket: Stainless steel, 5-mm outside diameter Collimated Output Throughput Efficiency: >65% 488 nm Only ~2 mrad Low Back Reflections 05 FDS 201 Polarization Extinction Ratio: ≥ 20 dB 458-514 nm1 ~2 mrad Low Back Reflections 05 FDS 203 Polarization Alignment (FDS 100/200 series)2: 82 degrees 488-647 nm2 ~2 mrad Low Back Reflections 05 FDS 205 633 nm Only ~2 mrad Low Back Reflections 05 FDS 207 Input Beam Diameter (1/e2 points)3: 0.65 mm FC Connector Output Beam Diameter (FDS/FDN 200 series)3: 0.65 mm 810% 488 nm Only ~160 mrad FC Keyed Connector 05 FDS 101 Helium Neon Lasers Output Beam Roundness: ≥95% 458-514 nm1 ~160 mrad FC Keyed Connector 05 FDS 103 M2 Factor: ≤1.2 488-647 nm2 ~160 mrad FC Keyed Connector 05 FDS 105 Pointing Stability: ≤1 mrad/ºC 1 Specifications apply only at 458, 488, and 514 nm. 2 Specifications apply only at 488, 568, and 647 nm. Operating Temperature: 10-40°C Operating Humidity: Noncondensing Single-Mode 1. Fiber delivery systems are optimized for specific, discrete wavelengths. Contact your nearest Melles Griot sales office for information on custom wavelengths. Fiber-Optic Laser Beam Delivery Systems 2 Relative to alignment key. Output Diode Laser Assemblies 3 0.70 mm for 633-nm systems. Divergence PRODUCT Wavelength (full angle) Features NUMBER Collimated Output 488 nm Only ~2 mrad Low Back Reflections 05 FDN 201 4 holes mounted thumb nuts for precision adjustment 458-514 nm1 ~2 mrad Low Back Reflections 05 FDN 203 on 36 PCD locking nuts 2 AF socket for allen 2 key adjustment 488-647 nm ~2 mrad Low Back Reflections 05 FDN 205 633 nm Only ~2 mrad Low Back Reflections 05 FDN 207 polarization key 31.7 FC Connector 488 nm Only ~160 mrad FC Keyed Connector 05 FDN 101 Diode Laser Drivers 31.7 60.0 458-514 nm1 ~160 mrad FC Keyed Connector 05 FDN 103 kinematic 488-647 nm2 ~160 mrad FC Keyed Connector 05 FDN 105 Laboratory length of fiber 2 meters mount 1 Specifications apply only at 458, 488, and 514 nm. 2 Specifications apply only at 488, 568, and 647 nm. collimated output beam 50.0 12.0 Custom OEM laser beam delivery systems are 05 FDS/FDN 200 keyway 05 FDS/FDN 100 available as integrated assemblies or components birefringence axis upon request. Contact your nearest Melles Griot dimensions in mm office for assistance. Laser Accessories 05 FDS/FDN series fiber-optic beam delivery system Visit Us Online! www.mellesgriot.com 1 47.15 Chpt. 47 Final 8/27/99 11:51 AM Page 47.16 Available in: ✔ Production Quantities ✔ Custom Sizes to Lasers Introduction Laser Accessory Adaptors Diode-Pumped Solid State-Lasers ADJUSTABLE ALIGNMENT ADAPTORS LASER ADAPTOR HOODS $ Translation adaptor has two pairs of thumbscrews allowing $ These heads interface between laser accessories and small- orthogonal translations of 80.8 mm in the X and Y axes. diameter helium neon lasers (see Chapter 44, Helium Neon Lasers) $ Translation/rotation adaptor adds an angular adjustment of and diode lasers (see Chapter 45, Diode Laser Assemblies). Not 80.5 degrees in the vx and vy, directions. recommended for accessories where beam centration is critical. Lasers 4 f12.7 4 f9.5 thumbscrews thumbscrews 47 M4 19.5 13 44 Ion and Helium Cadmium threaded 8-32 threaded 8-32 25.4 90° apart 90° apart 4 holes threaded f75.8 4-40 x 6.0 deep f65 on 36 circle fA threaded socket 1-inch–32 TPI f11 1-inch–32 TPI 9.5 15.9 dimensions in mm 11.0 center of dimensions in mm 57 rotation Laser Adaptor Hood Helium Neon Lasers Laser Housing Diameter Adjustable Alignment Adaptors fA (mm) PRODUCT NUMBER PRODUCT NUMBER 31.5–32.0 09 LAR 003 y and z adjustments 09 LAM 001 35.1 09 LAR 005 y, z, vy, vz adjustments 09 LAM 003 C-MOUNT RING C-MOUNT HOLDERS $ Allows direct attachment of 1-inch-32 TPI male threaded $ Ideal for post mounting of 1-inch-32 TPI male threaded beam expanders and spatial filters to laser heads. accessories independently from laser. A variety of mounting Diode Laser Assemblies posts are available (see Chapter 26, Posts, Pillars, Bases and Adaptor Plates). 1 hole counterbored 4 holes threaded 12.7 f27 ! 4.7 deep 4-40 thru on 36 circle 1 hole 1 hole threaded 25.4 4 holes f4 thru ! threaded counterbored 1-inch–32 TPI 20.6 deep t f44 1-inch–32 f5 ! 4 deep ! TPI 8 on 36 circle Laboratory Laboratory f27 f63.5 deep Diode Laser Drivers dimensions in mm dimensions in mm C-Mount Holder C-Mount Ring Post Thread PRODUCT NUMBER PRODUCT NUMBER 1/4-20 or M6 07 HLM 001 09 LAR 001 47.16 1 Visit Us OnLine! www.mellesgriot.com Laser Accessories Chpt. 47 Final 8/27/99 11:51 AM Page 47.17 Available in: ✔ Production Quantities Introduction to Lasers ✔ Custom Sizes Holders for Cylindrical Lasers Solid-State Lasers Diode Pumped Cylindrical Laser Holders 1 hole f7 thru 1 hole f7 thru Ion and Helium Cadmium $ Precise mounting of cylindrical laser heads to tabletops, posts, counterbored f11 or StableRods™ 32.5 $ Suitable for helium neon or diode lasers from 31.8 to 44.5 mm Lasers (1.25–1.75 in.) in diameter 65 $ 8 25.3 Provides fine angular adjustment 4 degree elevation and 85 +3,56 degree azimuth with angular resolution better than 0.4 arc minute 18 max 14.5 $ Optical axis height independent of laser diameter. 50.448.6 For further information regarding the StableRod™ mounting f23 min Helium Neon Lasers system see Chapter 27, Rail and StableRod™ Mounting Systems. f44.5 max f19 76 69 f25.4 32.5 +4.5 f10 57 18 24 104 max Diode Laser Assemblies dimensions in mm f19 65 07 HLA 015 cylindrical laser holders 2 holes f7 thru counterbored f11 on 50.4 centers StableRod™ Cylindrical Laser Holders f23 min Inch/Metric Version PRODUCT NUMBER f44.5 max Basic Laser Holder, Fixed Orientation 07 HLA 005 07 HLA 005 Mounting Plate, for 75-mm Optic Axis 07 RPC 027 Adjustable Laser Holder, Elevation and Azimuth O7 HLA 015 Diode Laser Drivers 07 HLA 015 Mounting Plate, for 75-mm Optic Axis 07 RPC 025 Laboratory 63 34 48 dimensions in mm 07 HLA 005 cylindrical laser holders Laser Accessories Visit Us Online! www.mellesgriot.com 1 47.17 Chpt. 47 Final 8/27/99 11:51 AM Page 47.18 to Lasers Introduction Diode-Pumped Solid State-Lasers Precision Cylindrical Laser Holder Snap-In Cylindrical Laser Holder This holder is designed for mounting and accurately aiming $ Snaps between nylon holding pads. cylindrical diode laser or helium neon laser heads. $ Tabletop or post mountable $ Fine-threaded thumbscrews or micrometer drives for angular $ Made from precision formed aluminum with black-anodized adjustment over a 6-degree range finish Lasers $ ™ Directly mounts to a tabletop, StableRod carrier, translation $ Compatible with metric and inch mounting hole patterns. or rotation stage $ Ion and Helium Cadmium Compatible with metric and inch mounting-hole patterns. fA B C 4.8 fD fA 4 screws 6.7 threaded 11.1 3.2 C M3 fF f16 B 10 f21 ! 8.5 deep Helium Neon Lasers 76.2 1 hole threaded 1 ! C 3 G E max /4-20 8 deep 1 hole 4 holes f7 thru threaded on 50.6 centers 64.8 M6 - 8 50.4 dimensions in mm deep E max 07 HLE snap-in cylindrical laser holder 64 50.4 4 holes f7.5 thru f13 Snap-In Cylindrical Laser Holders Diode Laser Assemblies Laser Diameter dimensions in mm fA B C PRODUCT 07 HLB and 07 HLC precision cylindrical laser holders (mm) (mm) (mm) NUMBER 31.6–31.8 56.5 50.8 07 HLE 001 34.9 57.5 50.8 07 HLE 002 Precision Cylindrical Laser Holders 44.5 69.5 63.5 07 HLE 003 Laser Diameter Laboratory Laboratory Adjustment fA B C fD PRODUCT Diode Laser Drivers Type (mm) (mm) (mm) (mm) NUMBER 44.5–45 60 106 36 07 HLB 003 Thumbscrews 31.6–32.5 55 100 38 07 HLB 005 44.5–45 60 106 36 07 HLC 003 Micrometers 31.6–32.5 55 100 38 07 HLC 005 47.18 1 Visit Us OnLine! www.mellesgriot.com Laser Accessories Chpt. 47 Final 10/11/99 11:24 AM Page 47.19 Available in: ✔ Production Quantities Introduction to Lasers ✔ Custom Sizes Laser Safety Eyewear Solid-State Lasers Diode Pumped Melles Griot offers three different types of laser safety eyewear in three different styles. Each type of eyewear is suited for a particular INFORMATION GUIDE FOR LASER SAFETY EYEWEAR Ion and Helium Cadmium application. It is important to consider the wavelength of your laser, the type of exposure, the exposure time, and the energy of your Laser light is extremely directional and intense, and laser before making a selection. Melles Griot strongly suggests that special care should be taken when working with lasers. Lasers you consult your laser safety officer (LSO), supervisor, or a Eye damage is only one of several types of injuries Melles Griot application engineer to assist you in choosing the associated with lasers. Special care needs to be taken to proper protective laser eyewear. avoid skin, chemical, and electrical hazards as well. Eye injury is preventable. In most cases, eye damage is $ All three types of eyewear are ANSI Z136.1 certified for the caused by negligence or carelessness. Several different US and Asia. structures of the eye can be damaged depending on the $ CE-certified models are available through our Melles Griot wavelengths being used and the amount of absorption sales offices in Europe. at that wavelength. Helium Neon Lasers $ Diffuse viewing only (DVO) eyewear is low cost, lightweight, The retina can be damaged with small amounts of and impact resistant. energy in the visible to near-infrared spectral region $ Laminated glass technology (LGT) provides good visible light (400 nm to 1400 nm). Damage to the cornea and lens transmission and superior scratch resistance, and it has a high can occur with longer wavelengths (1400 nm to 3000 nm) and shorter ultraviolet (200 nm to 400 nm) damage threshold. wavelengths. Another factor in retinal damage is $ Clear light technology (CLT) combines the light weight of the exposure time. Though poorly understood, it has been DVO eyewear with the protection level of the LGT eyewear. determined that damage is caused by different mechanisms in different temporal regimes: Diode Laser Assemblies photochemical (t>10 sec), thermal coagulation (10 msec < t <10 sec), and thermoacoustic (nsec)1. With lasers operating in the picosecond (10412) and femtosecond (10415) regimes, non linear effects make it nearly impossible to extrapolate results from current data. For this reason, conservative safety measures have been outlined by American institutions and their international counterparts. It is crucial to choose eyewear designed for the output wavelength of your laser. Laser safety eyewear works by Diode Laser Drivers attenuating, or reducing, the intensity of the light Laboratory entering your eye at a specific wavelength. Optical density (OD) is a measure of this attenuation and is defined by ANSI standards. Optical density is wavelength dependent and logarithmic; for every whole number the OD increases, the attenuation increases by a factor of ten. For more detail on optical density, please see Chapter 13, Filters. 1”Laser and LED Eye Hazards: Safety”, David Sliney, Optics and Laser Accessories Photonics News, September 1997 A selection of Melles Griot lasers Visit Us Online! www.mellesgriot.com 1 47.19 Chpt. 47 Final 8/27/99 11:51 AM Page 47.20 to Lasers Introduction Diode-Pumped Solid State-Lasers SELECTING LASER SAFETY EYEWEAR Before choosing your safety eyewear, it is necessary to know The exposure time depends on whether a laser is operating the laser’s output wavelength(s) and the class of the laser with a continuous wave (cw), a single- pulse, or a repetitive you will be operating. The classification is determined by the pulse. A laser is considered cw if it operates from Lasers laser’s potential for hazard. Federal law mandates that the 0.25 seconds to 30,000 seconds. A single pulse laser operates laser classification be provided with the laser (typically with a pulse of less than 0.25 seconds, with a pulse repetition affixed to the laser). The five most common laser rate of less than 1 Hz. A repetitive pulsed laser emits pulses Ion and Helium Cadmium classifications are as follows: each less than 0.25 seconds, at a rate greater than 1 Hz. Class I Lasers or laser systems that do not, under normal Once you have determined the optical density, you need to operating conditions, pose a hazard. select the style of your eyewear and the visible light transmission that meets your personal requirements. Class II Low-power visible lasers, which do not normally present a hazard because of the aversion Melles Griot offers three different types of safety eyewear: response of the eye (blinking reflex). Prolonged Diffuse viewing only (DVO) eyewear is low cost, exposure may cause damage lightweight, and impact resistant. This eyewear is ideal Helium Neon Lasers Class IIIa Lasers that typically would not injure the eye if when exposure to laser radiation is limited to diffuse viewed for brief periods (<0.25 seconds), but may reflection or stray light. present a greater hazard if used with focusing Laminated glass technology (LGT) provides good optics. transmission of visible light, superior scratch resistance, Class IIIb Lasers that may cause damage if viewed directly and an increased damage threshold, making it useful for alignment tasks. or through specular reflections. These lasers typically do not produce hazardous diffuse Clear lightweight technology (CLT) combines the minimal reflections. weight of DVO eyewear with the protection level of the Diode Laser Assemblies LGT eyewear by placing a multilayer ceramic-shielded filter Class IV Lasers that are hazardous if viewed directly or over polycarbonate. through specular reflections. Diffuse reflections may also be hazardous. These lasers may also present a risk of skin or fire damage.1 The laser safety eyewear you choose should have an optical density (OD) specified at the output wavelength of your laser, sufficient to reduce exposure to Class I radiation Laboratory Laboratory levels. OD is governed by the exposure type, the exposure Diode Laser Drivers time, and the energy output of the laser. Exposure type is either a diffuse reflection (i.e., a person looking at a laser spot on an alignment card), or an intrabeam exposure, which may occur by accidently looking down the beam path of the laser. 1Laser Institute of America, “Laser Safety Guide”, 9th edition, 1993. 47.20 1 Visit Us OnLine! www.mellesgriot.com Laser Accessories Chpt. 47 Final 8/27/99 11:51 AM Page 47.21 Introduction to Lasers Solid-State Lasers Diode Pumped Diffuse Viewing Only (DVO) Wavelength Visible Ion and Helium Cadmium Range Optical Light Transmission PRODUCT NUMBER Laser Type (nm) Density (%) Spectacle Over the Glasses Goggle Lasers Alexandrite and Ti:Sapphire 750–765 5.5 30 16 LPS 025 — — 766–860 6 Argon Alignment* 488–515 2–3 56 — 16 LOG 005 — Argon, Excimer, HeCd, and DPSS 190–532 7 45 16 LPS 007 16 LOG 007 — CO2 10,600 5 80 16 LPS 009 16 LOG 009 16 LPG 009 Diode, IR 830–1,700 2 40 — 15 LOG 015 — Helium Neon Lasers Diode, Visible Alignment 670 1–2 70 — 16 LOG 021 — CO2 10,600 5 HeNe Alignment 632.8 1–2 41 16 LPS 013 16 LOG 013 16 LPG 013 Diode Lasers, KrAr 670–680 4–5 Nd:YAG and Diode Lasers 800–839 3 50 16 LPS 017 16 LOG 017 16 LPG 017 840–864 4 865–1,063 5 1,064 7 Diode Laser Assemblies Nd:YAG, Harmonics, and DPSS 190–532 7 24 16 LPS 019 16 LOG 019 16 LPG 019 800–839 3 840–864 4 865–1063 5 1,064 7 Nd:YAG and Diode 740–785 3–4 32 — 16 LOG 011 — 785–1,063 5 1,064 7 Ruby 694 5 60 16 LPS 027 16 LOG 027 — Diode Laser Drivers Visible Lasers 450–585 4–5 6 — 16 LOG 023 — Laboratory *Allows you to see the termination point from your diffuse, cw, argon laser. Maximum energy is 30 watts. PRODUCT NOTE All DVO eyewear have an optical density of 7 from 190 to 380 nm, and an optical density of 5 at 10,600 nm. Laser Accessories Visit Us Online! www.mellesgriot.com 1 47.21 Chpt. 47 Final 8/27/99 11:51 AM Page 47.22 to Lasers Introduction Diode-Pumped Solid State-Lasers Laminated Glass Technology (LGT) Wavelength Visible PRODUCT NUMBER Range Optical Light Transmission Laser Type (nm) Density (%) Spectacle Goggle Alexandrite, IR Diode, GaAs, HeNe, 632.8 1–2 50 16 LGS 101 16 LGG 101 Lasers Alignment, Nd:YAG, and CO2 750–1050 7 1050–1064 8 10,600 4 Ion and Helium Cadmium Argon, Db:YAG, HeCd, and UV 190–532 8 42 16 LGS 201 16 LGG 201 Erbium, CO2, Nd:YAG, and Holmium 1064–1400 5 72 16 LGS 301 16 LGG301 1400–1600 4 2100, 2800–3200 4 10,600 4 Excimer, UV, and HeCd 190–380 9 85 16 LGS 401 16 LGG 401 370–380 8 Helium Neon Lasers Nd:YAG, Harmonics, CO2, HeCd, and 190–532 8 25 16 LGS 601 16 LGG 601 Argon 1050–1064 6 10,600 4 Clear Light Transmission (CLT) Wavelength Visible PRODUCT NUMBER Range Optical Light Transmission Laser Type (nm) Density (%) Spectacle Nd:YAG 1064 5 80 16 CLT 005 Diode Laser Assemblies Other filters for dye, Ti:sapphire, and ruby lasers are available on request. LGT is a registered trademark of Uvex Safety, Incorporated. Please consult ANSI Z136.1, your laser safety officer, or a supervisor to determine the correct laser eyewear of your application. Laboratory Laboratory Diode Laser Drivers 47.22 1 Visit Us OnLine! www.mellesgriot.com Laser Accessories