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N, E MICRON LASER TECMNOLOGY At-)VANCEMENTS at GSFC O- N, E MICRON LASER TECMNOLOGY At-)VANCEMENTS AT GSFC William S. Heaps [email protected] , 301-286-5106 Functional Organization of GSFC Tasks Earth Sciences Application Foci 2 Lasers, 4 Techniques, 6 Priority Measurements — ------ Pulsed Laser Developrnent — — — — — — — — — — — — — — - OIAL: Backscafthr Udar: Aerosols/Clouds 'I"Go—Q, nwc m'n I Risk Factors addressed by G,5FC, Tasks ql $ Olt , 014 1 micron Oscillator Development I micron Frequ ency --I micron ^^TpLffierjDeve!opmqnt Vacuum Lifetest of Heritaeg laser High Pulserate Laser Fiber Laser/dimpLfie!_ PPP Devq!2pmqjnfor CO2 LIDAR ! D eyff^meqt for-One zo LIDAR ----Ui'0--Power Lase - r Diode, gray: ---Inducontam, d Opticq, Di2ETA la"2 - Radiation 'resfin g- <nowfedae Caoture & Manaaement 2 -0 - I 07I 1 0recaz^- t f or he- m i c r o n F lu bu, r ^e TRL ; ^I TRS. -i^td TRL I micron T— rIw,,uIh L. Wind Udar a9omJ, 50 H user D—C"'z:m6w 4 40 tasee Dode T-I cnwia statist-? Iy Major Spaceflight Array aver D'A US 19 sjg^dkant I—pi.s rs was nLaserasePR ReliabilityReliability u tyre Gaps Filled'a i [:o:f-L T Craft ~: D ,Ft Claanin & p sL 'd or 1-2pm P,.t—,A. & Th—.9h L^b 1 ll UV Rows A 0--m.fi— Do— Atmospheric Profiler r I Lair, I A.gged High Pow" G, -.nM: Fraqw-ey Conv. i Nmlir—r Opti-I s.^Cl'.m.1,.n sy.t m e ^p MA.-i L, 0- 'lmAos erru F ilm,t=-Z; mti;mtY & -doye Sps-tlA ns ot of... pne"o9 Py..... 1.1' HI.b P.F ^ph.^Fine Resolution, fRL -1 RRL B.-e-b F^.d Demo PhPhotonoton Counting 1—w D. at & rr.d. Study 'Awtimetry Spacefl ht Opportunities I P Deliverable IRAD Opportunities IIP Opportunities 5 Overview of Tasks Thermal Management Dan Butler, NASA GSFC Objective bevelop robust techniques for management of Conductively 100M/ space-based laser systems, with 2500 W of Cooled Amp Spray Cooling thermal heat load -7 4$ bevelop/scale-up innovative technologies and FY'03 iFY04 I FY05 demonstrate compatibility with a space mission CPLs and LHPs Select cppronches & begin dev. Cooling EMe Ora hydrodynamics Complete scale-up to IJ Vapor Compression Systems Demonstrate Performance Final Integration & demo Applicability :f Didion, Eric Silk, &SFC Broad applicability to high- of Mb Office of Naval Research (GNP), 1 popo wer systems intended of Technology, Wright-Patterson Air force for deployment in space. Active Optical Diode Loser-Based Injection Seeder 44W ^ Objective High power, Q-switched lasers must be injection seeded to guarantee single mode operation, thereby eliminating optical damage due to multi - longitudinal mode q A compact efficient single frequency stabilized diode loser is veiny developed as a seecr laser that can be readily configured for altimetry, wind and molecular liclar applications. I 1 -1 Accomplishmenfs_ - - - ' - __ - Prototype seeder units have demonstrated 400-kHz 11t prototype forreliminary injection linewi dth operation. seeding of 1­400 received (3/03) 2,,d prototype with PM f iber-coupled 11t prototype in use to identify seeding variables. ultra-stable ci,le,5porn delivered (10)03) 211"prototype is currently being assembled. Mechanical design flight Mechanical design f or f light qualification in qualified use complete (9/03) progress. Projected Infusion Incorporation into I -micron iestbed. TRL 4 CurrPnt Ac ­ve (',ptbcal 'LIM Oet,trm inat ion of Gas-phose 0 bace rhreshold of 4V Objective TO Gauge - Determine '- r- e--m—e- Jiat-ion -procedure-- f- or- use" compounds that present concerns. Controller Determine mechanism of damage. Provide input for computational effort High Vacuum Pump 6, (5x10- Tbr6 Schedule and Deliverables 07 Compile database of compounds of concern which FY03 FY04 FY05 FY06 F reduce optical damage threshold. Include ROF a parameters of concentration/film thickness, 1064 nm Measurements wavelength, atmosphere. (Determine "safe" 532 nm measurements a R 0 0 9 9 if V compounds also.) i 355 nm Measurements ®a twoa a N IN a a Perform tests to validate computational results. IN IN is 11; JAWRF"'W f-UrU 0 Applicability Dr. John Canham, Swales Aerospace Broad applicability o optical i Fibertek, Inc materials intended TRL:rn 34 GSFC Code 545, Code 541 deployment in space. 14^ Photon Countmq Detectors for the 1-2 Micron Wavelength Range NASA GSFC Objective Optical detectors with photon counting sensitivity over the 1.0 - 2.0 micron wavelength range: Quantum ef f iciency: 10 - 701 Detector size: 200 mm diameter Dark counts: < 100 kcps Solid State APD: InGaAs photocathode, silicon or SEM TnA (As avalanche region, photo of InGaAs-on-Si APD InGaAs-Si interface Most commercial InGaAs APbs are grown on indium Nov. 2003 - Ist gen InGnAs-InAlAs APD mfg. test. phosphide (10) substrates. To access improved p noise performance it will be necessary to investigate Mar. 2004 -1st gen InGaAs-Si A t) mfg. & test. alternative substrate materials. This task will rocure InGaAs-5i APbs f rom Nova Crystals and Jul. 2004 - 2nd genInGaAs-InAlAs APO mfg. & test. n6iaAs-InAlAs APbs from Spectrolab and conduct photon counting experiments at low temperature. Sep. 2004 -2st gen IrGaAs-Si APO men. & test. Applicability N/A Optical irstr ;seen ts opera ting in the 1-2 rnic.rCn ave l enoth ^T ^122 -Inge Act;veI ^- JPfl"'al — ^4& Optornechanical Mounts 258-80- Andrea Pculin, NASA 39 -^ Objective­ Provide the LPRP with an informative collection of loser mount designs. Provide engineers with multiple options/solutionsi to choose from for different laser conf gurations. Conduct a study of several f light laser instruments to develop a database of different optomechanical mounts that have been used for mounting the various components of the losers. P-0 *X A I & I A d1p Document any issues/problems f ound with previous laser optomechanical mounts. k—h,A VCL Ad.,% P—h . GLAS 25 &y, Develop new concepts and/or suggest improvements on previous laser mount designs, R-0 . IM-A :Slope. Applicability Armando Morell, James Marsh, William Mamakos Optomechanical mounting GSFC systems are a critical part of all PTR* L 3 LaRC, Industry laser instruments. Active Optical 61" High Power, Narrowband, Infrared OPO V John Burris, NASA GSFC Objective -RD Develop and demonstrate ef f icient non-linear optics technologies for the conversion of 1-micron pump laser light into tunable IR wavelengths suitabli or profiling CO2 at very high precision (0.3%) f rom ground and space. Develop and demonstrate narrow time averaged linewidth for IR optical parametric oscillator, ical parametric conversion techniques to Develop/characterize IR OPO 1-micron radiation into the 1.57-micron no bond, f,' emonstrate narrow time averaged linewidth Deliverable: narrowband, tunable, highly efficient IR liglit source enable active profiling of atmospheric constituents (e:5i)- CO2) from !;pace. Applicability Male P ichter, !TT Hiqhrecision measurement of CCU, from ground and space. 1 TRL 3 T ns h-,^ M 4? ?! t S k_1vie Optical E --------- -- -- -------- ------- ----- ------------------- itm En-vironmentalE ff lfizcts i,,n Optical Mat'is (FY07 2"_'0K$) PI: Brad Boone THU-APL QW ctive Identify and test compounds used in the assembly of space-based lasers that may result in or cause loser induced optical damage. Diode Array Test Evaluate radiation effects of laser diode arrays and nonlinear crystals to determine their reliability and suitability in the space environment for extended missions. Laser Damage Test Chamber Approach Key Accomplishments/Milestones FY06 Conduct proton testing on "G" style loser diode Measure the effect of beta (Cobalt 60) and proton package. exposure on nonlinear optical mat'is. • FY06 Complete laser damage testing of original series Measure intrinsic differences in performance of of sample compounds. non-linear optical materials FY06 GC-MS measurements of space materials. FY07 evaluate non-linear material performance and Co-I's/Partners correlate with differences in ENDOP spectra Matthew Bevan, JHU-APL Golina Malivichko, Mont St TPL,,, =3/4 13 Lifetime and Efficiency Studies of Nonlinear Optics Materials 258-80- ! Edward Dowdye, NASA GSFC Objective Many lidar afplications require coherent light at a wavelength other than 1.0 micron, regir!np the use of nonlinear frequency conversion ma eria s. The longevity and durability of these materials is not well understood. Our objective is to measure the operational lifetime and efficiency of various nonlinear crystals to determine their suitability for use in space. r -- --, Various non-linear crystals Materials will be exposed to 1-micron laser radiation and used for frequency doubling, tripling, etc. Changes in performance as well as physical I . charges in the materials will be monitored. Optical Bench i Neodymium VAG& LIM UFA) -4 n 0 W Systemvolidatoh 17 won Applicability Dr, Hossin A. Abdel iarn L. maynard, or Broad applicability to optical Chris Scurlock (GSR materials and devices intended TRL 31 Industry, Academila for deployment in space. h145A GSFC Objective Final goat is to significantly advance the state of the art for present and future laser map ing altimeters for vegetation, ice sheets an topography (earth and planetary) as well as atmospheric and wind Iidars. dppr'oacli __... - Develop fliht qualif ied one micron laser transmitter FT). I,vestiete r w techniques • Target output energy = 100 mJ. Plan is to use this 4or eft$icient(y removing Cont. design for the oscillator stage of the : -O J LT. Develop controlled test program Final LT is to be fully environmentally tested, Complete test program flight qualified and characterized. Complete final guidelines/protocols Parallel oscillator breadboards being built for margin, stability, and component studies. Publish guidelines/protocols ®-.>< as rur-i recr-s Applicability GSFC Code 920/544 joint effort Altimetry, winds, ozone.
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