APL2200 series

High Energy kHz Repetition Rate Picosecond Amplifiers
  • Diode pumped picosecond amplifiers
  • Pulse energies up to 130 mJ
  • 30 – 90 ps pulses
  • 1 kHz pulse repetition rate
  • Diode pumped picosecond amplifiers
  • Pulse energies up to 130 mJ
  • 30 – 90 ps pulses
  • 1 kHz pulse repetition rate

Features & Applications


  • High pulse energy at kHz rates
  • Diode pumped solid state design
  • Cooled by supplied chiller – tap water is not required (optional)
  • Low maintenance costs
  • Remote control pad
  • PC control via USB with supplied LabVIEW™ drivers
  • Optional temperature stabilized second, third and fourth harmonic generators


  • OPG/OPA pumping
  • OPCPA pumping
  • Other spectroscopic and nonlinear optics applications…


APL2200 series amplifiers are designed to produce up to 130 mJ picosecond pulses at kilohertz pulse repetition rate. Short pulse duration, excellent pulse-to-pulse stability, superior beam quality makes APL2200 series diode pumped picosecond amplifiers well suited for applications like OPCPA pumping, non-linear optics and others.

Regenerative amplifier / Power amplifier design

APL2200 series amplifiers consist of regenerative amplifier and power amplifiers. System could be seeded by built-in picosecond oscillator or other ultrafast laser system. Pulses from regenerative amplifier are spatially shaped and amplified in double-pass amplifiers with thermally induced birefringence compensation. Advanced optical design ensures smooth, without hot spots beam spatial profile at the laser output. Low light depolarization level allows high efficiency generation of up to 4th harmonic with build-in harmonic generators. Repetition rate and timing of the pulses can be locked to the external RF source (with –PLL option) or other ultrafast laser system (with –FS option).

Build-in harmonic generators

Angle-tuned LBO and/or BBO crystals mounted in temperature stabilized heaters are used for second, third and fourth harmonic generation. Harmonic separation system is designed to ensure high spectral purity of radiation and direct it to the output ports.

Simple and convenient laser control

For customer convenience the amplifier can be controlled through remote control pad or USB interface. Alternatively, the amplifier can be controlled from personal computer with supplied software for Windows™ operating system. LabVIEW™ drivers are supplied as well.


Output energy
    at 1064 nm10 mJ30 mJ60 mJ130 mJ
    at 532 nm 2)5 mJ15 mJ30 mJ70 mJ
    at 355 nm 3)3 mJ10 mJ20 mJinquire
    at 266 nm 4)1 mJ2.5 mJ4 mJinquire
Pulse energy stability (Std.Dev.)5)
    at 1064 nm1 %
    at 532 nm1.5 %
    at 355 nm2 %
    at 266 nm4 %
Pulse duration (FWHM)6)90 ± 10 ps
Pulse repetition rate 7)1000 Hz
Triggering modeexternal
Spatial mode 8)super-Gaussian
Beam divergence 9)< 1 mrad< 0.7 mrad
Typical beam diameter 10)~3 mm~5 mm~6 mm~7 mm
Beam pointing stability 5)< 100 µrad
Pre-pulse contrast> 100 : 1
Polarizationlinear, > 95 %
Wavelength 1064 nm
Pulse duration range (FWHM) 20 fs – 90 ps
Pulse repetition rate 50 – 95 MHz
Average power > 20 mW
Laser head size (W×L×H)455 × 1035 × 242 mm900 × 1500 × 350 mm1200 × 2200 × 350 mmTBA
Power supply size (W×L×H)550 × 600 × 680 mm550 × 600 × 1100 mm550 × 600 × 1030 mmTBA
Chiller size (W×L×H)400 × 430 × 790 mm500 × 500 × 850 mm600 × 600 × 600 mm
Water servicenot required, air-cooledwater-cooled
Relative humidity20 – 80 % (non condensing)
Operating ambient temperature22 ± 2 °C
Mains voltage 11)208 – 230 V AC, single phase, 50/60 Hz208, 380 or 400 V AC, three phases, 50/60 Hz
Power rating 12)< 1.0 kVA< 2.5 kVA< 5 kVA< 14 kVA
  1. Due to continuous improvement, all specifications are subject to change. Parameters marked typical are illustrative; they are indications of typical performance and will vary with each unit we manufacture. Unless stated otherwise, all specifications are measured at 1064 nm and for basic system without options.
  2. For APL210x-SH and APL210x-SH/FH options. Outputs are not simultaneous.
  3. For APL210x-TH option. Outputs are not simultaneous.
  4. For APL210x-SH/FH option. Outputs are not simultaneous.
  5. Rms, measured over 30 s.
  6. Optional 30 ps duration. Inquire for pulse energies.
  7. Should be specified when ordering. Inquire for custom pulse repetition rates.
  8. Gaussian fit >80%.
  9. Full angle measured at the 1/e² level at 1064 nm.
  10. Beam diameter is measured at 1064 nm at the 1/e² level.
  11. Voltage fluctuations allowed are +10 % / -15 % from nominal value.
  12. Required current rating can be calculated by dividing power rating by mains voltage.

Note: Laser must be connected to the mains electricity all the time. If there will be no mains electricity for longer that 1 hour then laser (system) needs warm up for a few hours before switching on.

Available Models & Options

APL2201Delivers 10 mJ, 90 ps pulses at up to 1 kHz repetition rate
APL2203Delivers 30 mJ, 90 ps pulses at up to 1 kHz repetition rate
APL2205Delivers 60 mJ, 90 ps pulses at up to 1 kHz repetition rate
APL2206Delivers 130 mJ, 90 ps pulses at up to 1 kHz repetition rate


  • Option P30. Provides 30±3 ps output pulse duration. Contact EKSPLA for pulse energy specifications.
  • Option FS. External seeder input via motorized spectral broadening stage for APL2100 series.
  • Option PLL. Precise trigger to external RF signal with jitter < 1 ps.
  • AW Water-air cooling option. Water-air cooling unit or chiller for APL2100 series.
  • Multiple channel option. Multiple outputs of same or different wavelength/energy are available.

Recommended seed laser for 90 ps is PL2210B. For 30 ps pulse duration use PL2210A as seed laser.



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Scientific Applications
High Intensity Sources – laser produced plasma, x-ray source, extreme UV
OPCPA Systems – optical parametric chirped pulse amplification system

53 W average power CEP-stabilized OPCPA system delivering 5.5 TW few cycle pulses at 1 kHz repetition rate

Related applications:  High Intensity Sources OPCPA Systems

Authors:  R. Budriūnas, T. Stanislauskas, J. Adamonis, A. Aleknavičius, G. Veitas, D. Gadonas, S. Balickas, A. Michailovas, A. Varanavičius

We present a high peak and average power optical parametric chirped pulse amplification system driven by diode-pumped Yb:KGW and Nd:YAG lasers running at 1 kHz repetition rate. The advanced architecture of the system allows us to achieve >53 W average power combined with 5.5 TW peak power, along with sub-220 mrad CEP stability and sub-9 fs pulse duration at a center wavelength around 880 nm. Broadband, background-free, passively CEP stabilized seed pulses are produced in a series of cascaded optical parametric amplifiers pumped by the Yb:KGW laser, while a diode-pumped Nd:YAG laser system provides multi-mJ pump pulses for power amplification stages. Excellent stability of output parameters over 16 hours of continuous operation is demonstrated.

Published: 2017.   Source: Optical Society of America | Vol. 25, No. 5 | 6 Mar 2017 | OPTICS EXPRESS 5799

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