PL2140 SERIES PL2140 Series Picosecond Mode-Locked Nd:YAG

FEATURES

m Up to 110 mJ per pulse PL2140 series lasers are the industry’s The output power is continuously ad- at 1064 nm leading source for high-energy pico- justable without changing the output m All solid-state mode locking. second pulses for scientific appli- beam profile/divergence. No dye! US patent cations. They have excellent output The very low jitter of the optical pulse No. 7,133,426 parameters, are reliable and, at the with respect to the sync pulses allows m ~ 30 ps pulse duration with same time, remain simple and conve- reliable synchronization of the all solid state mode locking nient to use. with independent registration equip- m 10 or 20 Hz repetition rate The output pulse energy, stop, burst ment. and single shot operation modes can The compact power supply and cool- m Excellent pulse energy (< 1.5%) and duration be set to match the exact experiment ing unit easily fits under tables and (< 1.0%) stability task. saves valuable lab space. m Streak camera triggering option

APPLICATIONS m < 0.1 ns optical jitter

m OPG pumping m Time resolved m External triggering

m Nonlinear spectroscopy m Remote laser sensing m Synchronous operation with m SFG/SHG spectroscopy m Satellite ranging other devices m Material research m Other spectroscopic m Thermo stabilized second, m Dynamic grating/degenerate and third or fourth harmonic 4 wave mixing experiments options m Spatial soliton generation m Your application is welcome m PC control using RS232 and LabView drivers

m Remote control via keypad ALL SOLID STATE MODE LOCKING •• Have you ever got experience with passive mode-locking? all solid state Do you remember messy saturable absorber solution preparations? NO D PL2140 Series Tweaking your laser to force it run stable? Have you ever lost data due

to your time consuming experiment was stopped becouse of the YE! mode-locker solutions degradation just at experiment time? We are ready to propose you just right solution – NO DYE solution ! Solid state absorber and modern mode-locking technique provide you with unmatchable long-term stability of passively mode-locked pulses. mode locking

INNOVATIVE REGENERATIVE AMPLIFIER

PL2140 SS series lasers use an Harmonics Harmonics innovative cavity design to ensure Amplifier generator separator soft operation of the mode-locker. 355/266 Once a stable pulse evolves in 532 1064 the master oscillator cavity, it is directed to a slave branch of the cavity, bypassing the mode-locker and negative feedback. The high- Solid state Regenerative Laser head Cavity est cavity Q-value is achieved, and mode-locker amplifier control dumper the pulse is amplified to ~0.5 mJ. With this design, the thermal influence of the amplified pulse to the solid state mode locker is eliminated. A Pockel’s cell and thin film polarizer directs the amplified optical pulse out of the resonator. Precise driving of the Pockel’s cell provides excellent stability of the pulse energy, high signal/noise ratios and a low jitter output sync pulse.

900 250 EFFICIENT POWER AMPLIFIER Normal distribution AND HARMONIC GENERATORS 800

The optimized multiple-pass power amplifier 700 200 with pulse polarization rotation between the 600 passes efficiently extracts the energy stored 150 500 in the rod, at the same time, maintaining near Gaussian beam profile and low wavefront 400 Number of shots 100

Number of shots distortion. 300 Angle-tuned KD*P and KDP crystals 200 mounted in thermostabilised ovens are 50 used for second, third and fourth harmonic 100

generation. Harmonics separators ensure 0 0 37 38 39 40 41 0.7 0.8 0.9 1.0 1.1 1.2 1.3 high spectral purity of each harmonic directed Energy, mJ Energy, a.u. to different output port. Histogram of PL2143A Histogram of OPG PG401 output pulse output pulse energy at 1064 nm. energy at 520 nm when pumped by the 3rd StDev = 1.2 %.Total number of shots – 5040. harmonic of PL2143A laser.

ATTRACTIVE AND COST-EFFECTIVE STREAK CAMERA TRIGGERING OPTION In PL2140 series lasers offer an advanced low jitter electrical sync pulse option allowing simple and reliable triggering of a registration system. This is an unmatched alternative to complicated optical delay lines normally used with streak cameras. The circuit is comprised of an optical fiber and fast opto-switch. Its generated syncpulse can precede the optical pulse by ~ 200 ns with less than ± 0.1 ns jitter! To optimize triggering of external devices, this delay can be varied by using different length optical fibers. Additional syncpulse outputs as well as electrical outputs for monitoring of a pulse train and single pulse energy are provided. NEGATIVE FEEDBACK CONTROL SYSTEM

The electrooptical negative feedback control system introduced in the actively-passively mode- locked master oscillator assures excellent output pulse duration stability. Active control of the cavity losses extends the evolution of the picosecond pulse. After numerous roundtrips, the laser reaches a quasi-stationary lasing mode resulting in pulses with stable duration and energy. The geometry of the oscillator cavity optimizes the mode size in the laser rod and the solid-state mode locker and assures reliable long-term operation with minimal maintenance. The solid state saturable absorber eliminates any mode-locking dye. For shorter (~25 ps) pulse durations dye version is available.

SIMPLE AND CONVENIENT LASER CONTROL For customer convenience the laser is controlled through its RS 232 type PC interface with LabView drivers (included) or a user-friendly remote control pad. The remote pad allows easy control of all the parameters and features a backlit display that is easy to read even while wearing laser safety eyewear. Two build in energy monitors ensure easy and reliable operation. One is build-in in oscillator, another one – at the output of the amplifier. Data from the energy monitors can be seen on the remote keypad or PC monitor via the LabView drivers. LabView drivers, supplied together with the laser, enables long term monitoring of the output energy. Advanced software with built-in sensors protects laser optics from the accidental increases of pulse energy, by providing user with alerting messages and by stopping the laser, when the pulse energy exceeds the preset level.

POWER SUPPLY AND COOLING UNIT The power supply and cooling units ensure safe and reliable operations of the laser: – The electrical cabinet’s small size requires little space under the user’s optical table; – A converter type power supply ensures excellent stability of the capacitors bank voltage; – The flashlamps are simmered to reduce EMI noise and increase the lifetime; – A water/water type cooling unit features low noise operation; – An efficient heat exchanger ensures minimal consumption of mains water; – A filtering system keeps the internal loop water pure for a long time resulting in minimal regular maintenance. PL2140/CO – VERSION WITH EXTREMELY SHORT JITTER new PL2140/CO series laser pulse may be synchronized with any pulse, that repetition rate is 10/20 Hz, with jitter not bigger than 6 ns. After synchronisation of PL2140/CO laser with another laser or registering equipment, the jitter between pulses (of the PL2140/CO laser and another laser or registering PL2140 Series equipment) is smaller than 10 ps. 1–3 ps jitter is available on request. In addition, the triggering signal outdistances light pulse from 250 to 1000 ns ( tuning step ~11 ns). Jitter between trigerring and light signal is <100ps.

APL2106 SERIES PUMP SOURCE FOR OPCPA

High power comercial pump source for OPCPA application works at 10 Hz repetition rate and delivers 1.3 J at 1064 nm (0.6 J at 532 nm) in 90 ps pulse. Laser system allows pulse output energy scaling up to 5 J at 1064 nm (2.4 J at 532 nm).

LASER CONFIGURATION • Seeding oscillator based on Nd:YVO and solid state saturable 4 absorber technology. Oscillator is a low-power mode-locked la- ser, emitting pulses of a few nanojoules of energy and pulse length is 90 ps. One of the oscillator’s cavity mirrors is placed Beam profile at 532 nm, on a stage driven by a piezodrive for matching oscillator pulse made with WinCAM CCD camera frequency to the frequency of femtosecond pulse source. • Regenerative amplifier based on a flash lamp pumped Nd:YAG rod. The amplification of this stage is 106 and features pulses of millijoule level at its output. • Two-pass amplifier stage featuring amplification higher than two orders of magnitude. • An optional amplifier stage for system scaling purpose • A preamplifier stage with its beam shaping optics • Power amplifier based on Nd:YAG rod • Second (or higher) harmonic generator and harmonic separator.

LASER PARAMETERS

Pulse energy at 1064 nm, mJ 1300 (scalable up to 5 J)

Pulse energy at 532 nm, mJ 600 (scalable up to 2.4 J)

Short-term pulse energy stability at 1064 nm (St.Dev.), % < 1.5

Short-term pulse energy stability at 532 nm (St.Dev.), % < 2.5

Long-term output energy drift over 8 h, at 1064 nm (St.Dev.), % < 5

Beam propagation factor M2 < 2

Beam pointing stability at 1064 nm (St.Dev.), µrad < ± 20

Beam pointing stability at 532 nm (St.Dev.), µrad < ± 20

Pulse width at fundamental, ps 90 ± 10 (shorter pulses available)

Oscillator pulse repetition rate, MHz 70–100 TYPICAL LASER HEAD DRAWING OF PL2140 SERIES LASERS Laser apertures

PL2140 Series 40 40 50

190

165÷195 1630 310 Push-button switch (to select the pulse dumped) Interlock extension connector

To harmonic unit (not in all models)

300

Emission indicator

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PICOSECOND OPG’s Powerful and versatile tool for in-situ investiga- WITH NEAR TRANSFORM-LIMITED BANDWIDTH tion of surfaces and interfaces. A PG411/511 series optical parametric generators (OPG) are perfect • Superb laser source stability for high choice for research requiring narrow bandwidth picosecond pulses. signal/noise ratios • 0.42–2.3 µm tuning range • Broad measurement range down to 625 cm-1 • < 2 cm-1 bandwidth • Better than 6 cm-1 spectral resolution • High conversion efficiency • Cost-effective picosecond system approach • < 7% (StDev) output energy • Intuitive and comprehensive software stability package PL2140 Series www.ekspla.com [email protected] SPECIFICATIONS a:+370 Fax: 2649629 5 +370 Ph.: 5) 4) 3) 2) 1) 20 inu 53 – 02300 av.231 Savanoriu Div.Systems Laser and Lasers Pulse duration stability at 1064 nm (StDev),% nm 1064 at stability duration Pulse Mains requirements Mains (non-condensing), humidity Relative temperature, Room CHARACTERISTICS PHYSICAL ps (FWHM), nm 1064 @ duration Pulse in respect to optical pulse, ns pulse, optical to respect in lead pulse SYNC2 Typical Hz rate, Repetition Contrast ratio at 1064 nm 1064 at ratio Contrast axis beam Output Water consumption (max. 20 °C) l/min °C) 20 (max. Waterconsumption REQUIREMENTS OPERATING m length, Umbilical diameter,Typicalmm beam Polarization ratio at 1064 nm > 100:1 > mm size, cabinet Electric 2.0 mm: size, head Laser PL2143C mrad divergence, Beam PL2143BD PL2143B PL2143A (StDev),ns pulse SYNC2 to respect in jitter pulse Optical PL2143 (StDev),µs pulse triggering external to respect in PL2143AT jitter pulse Typicaloptical nm 1064 at ratio Polarization PL2140 (StDev),%: stability energy Pulse energy,pulse mJ Max. Model Power consumption, kVAconsumption, Power For PL214x-SH/FH option. PL214x-SH/FH For option. PL214x-THFor option. PL214x-SH/FH or PL214x-SH For simultaneous. not are Outputs change to subject are specifications All are measured at 1064 nm. 1064 at measured are specifications all otherwise stated Unless manufacture. we unit each with vary will and performance typical of indications are They specifications. not are typical marked parameters The notice. without at 266 nm 266 at nm 266 at egt558855555588868 600 550 868 250 600 550 340 525 250 600 1670 550 340 525 1670 250 600 550 300 525 1630 250 600 550 868 300 1630 600 250 550 525 300 1630 250 600 550 1670 340 250 1630 300 1.5 1.5 Height Lenght 110 Width 1.5 50 + 80 Height Lenght 1.5 Width 80 1.5 50 1.5 30 1.5 50 0.5 nm 355 at nm 532 at nm 1064 at nm 355 at nm 532 at nm 1064 at 5 2641809 5 Requests for custom made products are welcome ! welcome are products made custom for Requests 5) 4) 3) 5) 4) 3) egt m180±5 mm height, 9) 15) C15–30 °C 2) : 12) 16) 13) 1) 14) 11) ISO 9001 ISO certified 6) 20–80 % 9) 8) 7) 6) 10) 6) 10) <100 ps jitter is provided with PRETRIG with provided is jitter ps <100 specified be should rate repetition Pulse when period hour 1 over Measured Solid-State for ps <35 is Pulseduration pulses. 300 from Measured option. ordering. while °C. ±1 than less is variation temperature ambient range. ps 35-100 in durations pulse other for Inquiry option. Mode-locker 7) 8) 0o 01 r2 0o 01 r2 01 10 10 10 20 or 10 20 or 10 20 or 10 20 or 10 < 1.1 <1.1 < 1.1 < 1.5 < 1.8 < 2.0 < 1.8 < 2.0 < 1.8 < 1.5 < 1.1 < <1.1 1.1 < <1 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < <1 01 15 30 10 20 55 10 20 40 7 12 40 3 8 25 7 12 15 train) (8 25 – – – 6tan 0~1/0~12 10/10 ~ 64668 88 10 ~ 8 ~ 7.0 5.5 6 ~ train) (6 8 7.0 5.5 3.0 3 7.0 5.5 3.0 7.0 5.5 3.0 7.0 5.5 3.0 7.0 5.5 3.0 – train) (4.0 3.0 – – 14) 13) 12) 11) Beam diameter is measured @ 1064 nm 1064 @ measured is diameter Beam pulse main to respect in pulses Residual 1/e the at measured Fullangle is and range ns 150-300 in be Leadcan @ 1064 nm . nm 1064 @ at the 1/e the at nm. 1064 @ equipment. auxiliary of triggering precise for used be can SYNC2 adjustable. not 220VAC, 50/60Hz, single phase single 220VAC,50/60Hz, Find local distributor at distributor local Find 2 point. www.ekspla.com > 200:1 > >150 <30 0.5 1.0 2.5 2 point 16) 15) For 10 Hz PRR versions. PRR Hz For10 or VAC, 50 380 or 208 phase, Three PRR versions. PRR Hz 20 for required are mains Hz 60 ELCE RSATRDRADIATION SCATTERED DIRECT OR TO REFLECTED EXPOSURE SKIN OR EYE RADIATION AVOID LASER INVISIBLE AND/OR VISIBLE DANGER LS VLSRPRODUCT LASER IV CLASS ps 25 pulse nm mJ, 266 110 nm, Max. 355 nm, 532 nm, 1064 Nd:YAG Revision number – 080519 – number Revision