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PGX03 series Picosecond kHz Repetition Rate OPG

PGX03 series OPGs are excellent choice for researchers who need picosecond tunable sources from UV to mid IR. Featuring 1 kHz repetition rate and due to the unique broad tunability range these devices are a very attractive and cost-efficient alternative to other tunable laser radiation sources.


  • Picosecond pulses at 1 kHz pulse repetition rate
  • Hands-free wavelength tuning
  • Tuning range from 210 nm to 16000 nm
  • Narrow linewidth <6 cm⁻¹
  • Low divergence <2 mrad
  • Remote control via keypad
  • PC control using USB (RS232 is optional) and LabVIEW™ drivers


  • Time resolved pump-probe spectroscopy
  • Laser-induced fluorescence
  • Infrared spectroscopy
  • Nonlinear spectroscopy: vibrational-SFG, surface-SH, CARS, Z-scan
  • Other laser spectroscopy applications


PGx03 series Optical Parametric Generators (OPG) are designed to be pumped by 1 kHz mode-locked lasers with 1 W average power. An excellent choice is the PL2210A series mode‑locked picosecond laser from EKSPLA.

The optical design is optimized to produce low divergence beams with moderate linewidth (typically 12 cm⁻¹) at approximately 20 ps pulse duration. Due to the unique broad tunability range from 210 to 16000 nm these devices are an excellent choice for many spectroscopic applications.

Upon request the optical layout can be easily modified for pumping by other mode-locked lasers with high pulse energy or longer pulse duration.

Three models designed for pumping by up to the 3rd harmonic of Nd:YAG laser are available.

Model        Features
PG403 Model has a tuning range from 410 to 2300 nm and is optimized for providing the highest pulse energy in the visible part of the spectrum. When combined with an optional Second Harmonic Generator (SHG), it offers the widest possible tuning range – from 210 to 2300 nm.
PG503 Model has a tuning range from 700 to 2300 nm and the highest pulse energy in the near-IR spectral range. PG503 is a cost-effective alternative to the narrow-band mode-locked Ti:S lasers.
PG703 Model is targeted for infrared spectroscopy applications. The tuning range is from 1400 to 4450 nm and with an optional Difference Frequency Generator (DFG) stage it can be extended to 16000 nm.

Microprocessor based control system -provides automatic positioning of relevant components for hands free operation. Nonlinear crystals, diffraction grating and filters are rotated by ultra-precise stepper motors in the microstepping mode, with excellent reproducibility. Precise nonlinear crystal temperature stabilization ensures long-term stability of generated wavelength and - output power.

For customer convenience the system can be controlled using a user-friendly remote control pad or through USB interface (RS232 is optional) from a personal computer (PC) using supplied LabVIEW™ drivers.

Available standard models are summarized in a specifications sheet below. Please inquire for custom-built versions.

Specifications 1)

Model PG403 PG403-SH PG503 PG703 PG703-DFG
OPG specifications
Output wavelength tuning range
  SH 210-410 nm
  Signal 410-709 nm 700-1000 nm 1550-2020 nm 1550-2020nm
  Idler 710-2300 nm 1150-2200 nm 2250-3350 nm 2250-3350 nm
  DFG 3350-16000 nm
Output pulse energy 2)
  SH 3) 10 µJ
  Signal 50 µJ 70 µJ 60 µJ
  Idler 4) 15 µJ 25 µJ 20 µJ
  DFG 5) 6 µJ
Pulse repetition rate 1000 Hz
Linewidth < 12 cm-1 < 12 cm-1 < 6 cm-1
Typical pulse duration 6) 15 ps 20 ps 20 ps
Scanning step
  SH 0.05 nm
  Signal 0.1 nm
  Idler 1 nm
  DFG 1 nm
Typical beam size 7) ~ 3 mm
Beam divergence 8) < 2 mrad
Beam polarization 9)
  SH vertical
  Signal horizontal
  Idler vertical horizontal vertical
  DFG vertical
Pump laser requirements
Min pump energy 10)
  at 1064 nm 0.9 mJ
  at 532 nm 0.45 mJ
  at 355 nm 0.3 mJ
Pulse duration 11) 10 – 30 ps
Beam polarization at pump wavelength vertical horizontal
Beam size 11) 2 – 3 mm
Beam divergence < 1 mrad
Beam profile homogeneous, without hot spots, Gaussian fit > 90 %
Recommended pump source PL2210A-TH PL2210A-TH PL2210A-SH PL2210A PL2210A
Physical characteristics
Size (W x L x H) 456 x 605 x 273 mm 456 x 1026 x 273 mm 456 x 605 x 273
456 x 1026 x 273 mm
Operating requirements
Room temperature 15 – 30 °C
Power requirements 100 – 240 V single phase, 47 – 63 Hz
Power consumption < 120 W

1) Due to continuous improvement, all specifications are subject to change without notice. Parameters marked typical are not specifications. They are indications of typical performance and will vary with each unit we manufacture. Unless stated otherwise, all specifications are measured at 450 nm for PG403 units, 800 nm for PG503 units, and 1620 nm for PG703 units.
2) Pulse energies are specified at selected wavelengths. See typical tuning curves for pulse energies at other wavelengths.
3) Measured at 250 nm.
4) Measured at 1000 nm for PG40x units, 1620 nm for PG503 and 3000 nm for PG703 units.
5) Measured at 5000 nm.
6) Estimated assuming 30 ps at 1064 nm pump pulse. Pulse duration varies depending on wavelength and pump energy.
7) Beam diameter at the 1/e² level. Can vary depending on the pump pulse energy.
8) Full angle measured at the FWHM level.
9) Separate output ports for SH, signal, idler and DFG ranges.
10) Max pump energy is limited by available non‑linear crystal sizes.
11) Should be specified while ordering if non‑Ekspla pump laser is used.


Ordering information

Ordering information of PGX03 series OPG