PGx03 series
datasheet
- 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 |
|---|---|
| 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. |
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 | – |
| Signal | 50 µJ | 70 µJ | |
| Idler 4) | 15 µJ | 25 µJ | |
| Pulse repetition rate | 1000 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) | |||
| SH | – | horizontal | – |
| Signal | horizontal | ||
| Idler | vertical | ||
| PUMP LASER REQUIREMENTS | |||
| Min pump energy 9) | |||
| at 532 nm | – | 0.45 mJ | |
| at 355 nm | 0.3 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 temperature | 15 – 30 °C | ||
| Power requirements | 100 – 240 V single phase, 47 – 63 Hz | ||
| Power consumption | < 120 W | ||
- 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.
- Pulse energies are specified at selected wavelengths. See typical tuning curves for pulse energies at other wavelengths.
- Measured at 250 nm.
- Measured at 1000 nm for PG40x units, 1620 nm for PG503 units.
- Estimated assuming 30 ps at 1064 nm pump pulse. Pulse duration varies depending on wavelength and pump energy.
- Beam diameter at the 1/e² level. Can vary depending on the pump pulse energy.
- Full angle measured at the FWHM level.
- Separate output ports for SH, signal and idler ranges.
- Max pump energy is limited by available non‑linear crystal sizes.
- 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.
