PGx03 series

Picosecond kHz Repetition Rate Tunable OPA
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  • High repetition rate picosecond OPA
  • Tuning range from 210 to 2300 nm
  • 1 kHz repetition rate
  • Up to 70 µJ energy
  • High repetition rate picosecond OPA
  • Tuning range from 210 to 2300 nm
  • 1 kHz repetition rate
  • Up to 70 µJ energy

Features & Applications

Features

  • Picosecond pulses at 1 kHz pulse repetition rate
  • Hands-free wavelength tuning
  • Tuning range from 210 nm to 2300 nm
  • Narrow linewidth <6 cm⁻¹
  • Low divergence <2 mrad
  • Remote control via keypad
  • PC control using USB (RS232 is optional) and LabVIEW™ drivers

Applications

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

Description

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 15 –20 ps pulse duration. Due to the unique broad tunability range from 210 to 2300 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.

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 through its USB type PC interface (RS232 is optional) with LabView™ drivers or a remote control pad. Both options allow easy control of system settings.

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

Available Models

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.

Specifications

Model PG403 PG403-SH PG503
OPA SPECIFICATIONS 1)
Output wavelength tuning range
    SH 210–410 nm
    Signal 410–709 nm 700–1000 nm
    Idler 710–2300 nm 1150–2200 nm
Output pulse energy 2)
    SH 3) 10 µJ
    Signal50 µJ 70 µJ
    Idler 4)15 µJ 25 µJ
Pulse repetition rate1000 Hz
Linewidth < 12 cm-1 < 12 cm-1
Typical pulse duration 5) 15 ps 20 ps
Scanning step
    SH 0.05 nm
    Signal 0.1 nm
    Idler 1 nm
Typical beam size 6)~ 3 mm
Beam divergence 7)< 2 mrad
Beam polarization 8)
    SHhorizontal
    Signal horizontal
    Idler vertical
PUMP LASER REQUIREMENTS
Min pump energy 9)
    at 532 nm 0.45 mJ
    at 355 nm0.3 mJ
Pulse duration 10)30 ps
Beam size 10) 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
PHYSICAL CHARACTERISTICS
Size (W x L x H) 456 x 632 x 273 mm 456 x 820 x 273 mm 456 x 632 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, at 800 nm for PG503 units and for basic system without options.
  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 units.
  5. Estimated assuming 30 ps at 1064 nm pump pulse. Pulse duration varies depending on wavelength and pump energy.
  6. Beam diameter at the 1/e² level. Can vary depending on the pump pulse energy.
  7. Full angle measured at the FWHM level.
  8. Separate output ports for SH, signal and idler ranges.
  9. Max pump energy is limited by available non‑linear crystal sizes.
  10. Should be specified while ordering if non‑Ekspla pump laser is used.

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.

Tuning Curves

Optical Layouts & Drawings

Ordering Information

Send request about PGx03