PGx03 series

Picosecond kHz Repetition Rate Broadly Tunable OPA
/  High repetition rate picosecond OPA
/  Ultra-broad tuning from 193 to 16 000 nm
/  1 kHz repetition rate
/  Up to 70 µJ energy
/  High repetition rate picosecond OPA
/  Ultra-broad tuning from 193 to 16 000 nm
/  1 kHz repetition rate
/  Up to 70 µJ energy

Features & Applications


  • 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.

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 table below. Please inquire for custom-built versions.

Available Models

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


Model       Features
PG403Model 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.
PG503Model 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.
PG703Model 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.


Model PG403 PG403-SH PG503 PG703 PG703-DFG
OPA specifications 1)
Output wavelength tuning range
    SH 210–410 nm
    Signal 410–709 nm 700–1000 nm 1550–2020 nm 1550–2020 nm
    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
    Signal50 µJ 70 µJ 60 µJ
    Idler 4)15 µJ 25 µJ 20 µJ
    DFG 5) 6 µJ
Pulse repetition rate1000 Hz
Linewidth < 12 cm-1 < 12 cm-1 < 6 cm-1
Typical pulse duration 6) 15 ps 20 ps20 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 nm0.3 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 temperature15 – 30 °C
Power requirements100 – 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.

Tuning Curves

Optical Layouts & Drawings

Ordering Information

Ordering information of PGx03 series OPA

Ordering information of PGx03 series OPA

Send request about PGx03