PGX11 窄线宽皮秒光学参量发生器（OPG）PGX11系列
- 品牌：Ekspla
- 型号：PGX11
- 供应商：北京欧兰科技发展有限公司
- 供应商报价：面议
- 标签：窄线宽皮秒光学参量发生器（OPG）PGX11系列,-1,北京欧兰科技发展有限公司
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Features
High brightness picosecond pulses at up to 1 kHz pulse repetition rate
Nearly Fourier-transform limited linewidth
Low divergence
Hands-free wavelength tuning
Spectral range of 210 nm to 16 000 nm
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, CARS, Z-scan
Other laser spectroscopy applications
PGx11 series optical parametric generators employ advanced design concepts in order to produce broadly tunable picosecond pulses with nearly Fourier-transform limited linewidth and low divergence. High brightness output beams makes the PGx11 series units an excellent choice for advanced spectroscopy applications.
Optical layout of PGx11 units consists of Synchronously pumped Optical Parametric Oscillator (SOPO) and Optical Parametric Amplifier (OPA). SOPO is pumped by a train of pulses at approximay 87 MHz pulse repetition rate. The output from SOPO consists of a train of pulses with excellent spatial and spectral characteristics, determined by the SOPO cavity parameters.
OPA is pumped by a single pulse temporally overlapped with SOPO output. After amplification at SOPO resonating wavelength, the PGx11 output represents a high intensity single pulse on top of a low-intensity train, while in all other spectral ranges (idler for PG411 and PG711, signal for PG511, also DFG stages) only a single high intensity pulse is present.
Three models designed for pumping by up to the 3rd harmonic of Nd:YAG laser are available.
PG411 model has a tuning range of 420 nm to 2300 nm and is optimized for providing 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 nm to 2300 nm.
PG511 model has a tuning range of 725 nm to 2000 nm and highest pulse energy in near-IR spectral range. With an optional Difference Frequency Generator (DFG) stage, the tuning range can be extended into the 2 300 nm -10 000 nm range.
PG411 and PG511 models are designed to be pumped by PL2251series lasers with a 10 Hz pulse repetition rate.
PG711 model has 1 kHz pulse repetition rate and uses DPSS mode-locked laser of thePL2210series for pumping. When pumped with pulses of 90 ps duration, linewidths of less than 1 cm-1 were measured in the spectral range up to 16 000 nm, which makes this device an excellent choice for time-resolved or nonlinear infrared spectroscopy.
Microprocessor based control system provides automatic positioning of relevant components, allowing hands free operation. Nonlinear crystals, diffraction grating and filters are rotated by ultra-precise stepper motors in 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.
Please inquire for custom-built versions.
Specifications 1)
| Model | PG411 | PG411-SH | PG511-DFG | PG711 | PG711-DFG |
|---|---|---|---|---|---|
| OPG specifications | |||||
| Output wavelength tuning range | |||||
| SH | - | 210-420 nm | - | - | - |
| Signal | 420-709 nm | 725-1000 nm | 1550-2020 nm | ||
| Idler | 710-2300 nm | 1140-2000 nm | 2250-3350 nm | ||
| DFG | - | 2300-10000 nm | - | 3350-16000 nm | |
| Output pulse energy 2) | |||||
| SH | - | 100 µJ3) | - | - | |
| Signal | 700µJ | 700µJ | 500µJ | ||
| Idler 4) | 250µJ | 250µJ | 100µJ | ||
| DFG | - | - | - | - | 10µJ 5) |
| Pulse repetition rate | 10 Hz | 10 Hz | 1000 Hz | ||
| Linewidth | < 2 cm-1 | <2 cm-1 | < 0.5 cm-1 | ||
| Typical pulse duration 6) | 15 ps | 20 ps | 70 ps | ||
| Scanning step, nm | |||||
| SH | - | 0.005 nm | - | - | |
| Signal | 0.01 nm | 0.05 nm | 0.05 nm | ||
| Idler | 0.1 nm | 0.1 nm | 0.1 nm | ||
| DFG | - | - | - | - | 0.2 nm |
| Pulse contrast 7) | 500:1 | 500:1 | 106:1 | ||
| Typical beam diameter 8) | ~ 4 mm | ~ 4 mm | ~ 3 mm | ||
| Beam divergence 9) | < 2 mrad | ||||
| Beam polarization 9) | |||||
| SH | - | vertical | - | - | |
| Signal | horizontal | vertical | horizontal | ||
| Idler | vertical | horizontal | vertical | ||
| DFG | - | horizontal | - | horizontal | |
| Pump laser requirements | |||||
| Recommended pump source | PL2251A + APL + H411 | PL2251A + APL + H411 | PL2251A + APL + H511 | PL2210B-TR | PL2210B-TR |
| Min. pump energy or power | |||||
| at 1064 nm | - | (10 mJ) 10) | 5W (2,5 mJ) 10) | ||
| at 532 nm | - | 5 mJ | - | ||
| at 355 nm | 5 mJ (8 mJ) 10) | - | - | ||
| Pulse duration 11) | 30 ps | 30 ps | 90 ps | ||
| Bream polarization at pump wavelength | vertical | horizontal | horizontal | ||
| Beam size 12) | 7 mm | 7 mm | 2.5 mm | ||
| Beam divergence | < 1 mrad | ||||
| Beam profile | homogeneous, without hot spots | ||||
| Physical characteristics | |||||
| Size (HxL) | 456x273x1026 mm | 456x273x1226 mm | 456x273x1226 mm | 456x127x1026 mm | 456x273x1226 mm |
| Operating requirements | |||||
| Room temperature | 15-30 °C | ||||
| Room temperature stability | ± 2 °C | ||||
| Mains voltage | 90-240 V single phase, 47-63 Hz | ||||
| Power consumption | < 300 W | ||||
1) 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 PG411 units, 800 nm for PG511 units, and 1620 nm for PG711 units.
2) Pulse energies are specified at selected wavelengths. See typical tuning curves for pulse energies at other wavelengths.
3) Measured at 280 nm.
4) Measured at 1000 nm for PG411 units, 1620 nm for PG511, and 3000 nm for PG711 units.
5) Measured at 10000 nm.
6) Estimated FWHM assuming pump pulse duration 30 ps at 1064 nm for PG411 and PG511 units, and 90 ps at 1064 nm for PG711 units.
7) Ratio of intensity of single pulse with respect to residual pulse train. In SH or DFG ranges pulse contrast is better than 106:1.
8) Beam diameter is measured at FWHM level and can vary depending on the pump pulse energy.
9) Full angle measured at FWHM level.
10) The first number represents 88 MHz pulse train energy or power, while the value in brackets represents single pulse energy.
11) At FWHM level. Inquire for other available pulse duration options.
12) Beam diameter measured at 1/e2 level.
Typical outside view of PGX11 series picosecond optical parametric generators
Typical PG411-SH model tuning curve. Note: pulse energy can be affected by the air absorption due narrow linewidth of generated radiation. The curves represents values when air absorption is negligible.
Typical PG711-DFG model tuning curve. Pump energy: 2.5mJ at 1064 nm., 1 kHz repetition rate. Note: pulse energy can be affected by the air absorption due narrow linewidth of generated radiation. The curves represents values when air absorption is negligible.
Typical PG511-DFG model tuning curve. Note: pulse energy can be affected by the air absorption due narrow linewidth of generated radiation. The curves represents values when air absorption is negligible.
PG511-DFG model typical output linewidth. Note: pulse energy can be affected by the air absorption due narrow linewidth of generated radiation. The curves represents values when air absorption is negligible.
