Features
- Integrates DPSS pump laser and OPO into a single housing
- Separate output ports for the pump laser and OPO beams
- OPO output wavelength range from 210 nm to 12 000 nm
- Pulse repetition rates from 100 Hz to 2500 Hz
- Narrow linewidth
- Hands-free tuning
- 6–9 ns pulse duration of pump laser
- Remote control pad
- PC control via USB (RS232 is optional) and LabVIEW™ drivers
Applications
- Laser-induced fluorescence
- Photolysis
- Photobiology
- Remote sensing
- Metrology
- Gas spectroscopy
- Other laser spectroscopy applications
NT200 series tunable laser systems integrate, into a single compact housing, a nanosecond Optical Parametric Oscillator (OPO) and a Diode-Pumped Solid–State (DPSS) Q-switched pump laser.
Pulse repetition rates range from 100 Hz to 2500 Hz, thus allowing fast data acquisition.
Most of the pump lasers do not require water for cooling, thus reducing running and maintenance costs.
All lasers feature motorized tuning across the specified tuning range. The output wavelength can be set from a control pad with a backlit display that is easy to read even while wearing laser safety eyewear. Alternatively, the laser can be controlled from a personal computer via USB (RS232 is optional) interface using supplied LabVIEW™ drivers.
High conversion efficiency, stable output characteristics, easy maintenance and compact size make our systems an excellent choice for many applications.
NT200 series available models
| Model |
NT242 |
NT253 |
NT273 |
NT273-XIR |
NT277 |
NT277-GI |
| Tuning range |
210 to 2600 nm |
670 to 2580 nm |
1572 nm |
4100 to 12000 nm |
2500 to 4475 nm |
2500 to 4100 nm |
| Pulse repetition rate |
1000 Hz |
500 Hz |
500 or 1000 Hz |
500 Hz |
500 or 1000 Hz |
1000 Hz |
Specifications 1)
| Model |
NT242 9) |
NT253 |
NT273 |
NT273-XIR |
NT277 |
NT277-GI |
| OPO |
| Wavelength range, nm |
| Signal |
405-709 |
670-1000 |
1572 |
- |
- |
- |
| Idler |
710-2600 |
1140-2580 |
3293 |
4100-12000 2) |
2500-4475 |
2500-4100 |
| SH or SFG |
210-405 |
335-500 |
- |
- |
- |
- |
| Pulse energy, µJ 3) |
| OPO |
450 at 480 nm |
250 at 800 nm |
400 at 1572 nm |
20 at 7000 nm |
150 at 3000 nm |
50 at 3000 nm |
| SH or SFG |
40 at 240 nm |
40 at 400 nm |
- |
- |
- |
- |
| Pulse repetition rate, Hz 4) |
1000 5) |
500 |
1000 6) |
500 |
1000 6) |
1000 |
| Linewidth, cm-1 |
<5 |
<4 |
<2 |
<6 |
10-150 7) |
<1 |
| Scaning step, nm |
| Signal |
0.1 |
0.1 |
- |
- |
- |
- |
| Idler |
1 |
1 |
- |
1 |
1 |
1 |
| UV |
0.05 |
0.05 |
- |
- |
- |
- |
| Polarization |
| Signal beam |
horizontal |
horizontal |
vertical |
- |
- |
- |
| Idler beam |
vertical |
vertical |
horizontal |
horizontal |
vertical |
horizontal |
| UV beam |
vertical |
vertical |
- |
- |
- |
- |
| Typical beam diameter, mm 8) 10) |
2.5 |
2.5 |
2 |
4 |
2.5 |
3 |
| Pump laser |
| Pump wavelength, nm 11) |
355 |
532 |
1064 |
1064 |
1064 |
1064 |
| Max pump pulse energy, mJ 12) |
3 |
2.0 |
1.9 |
4 |
1.9 |
1.9 |
| Pulse duration, ns 13) |
6-8 |
<8 |
<9 |
<9 |
<9 |
<9 |
| Beam quality |
Fit to Gaussian > 90 % |
| Beam divergence, mrad |
< 2 |
< 3 |
< 3 |
< 3 |
< 3 |
< 3 |
| Pulse energy stability (StDev), % |
< 3.5 |
< 2 |
< 1 |
< 1 |
< 1 |
< 1 |
Physical characteristics
| Model |
NT242 |
NT253 |
NT273 |
NT273-XIR |
NT277 |
NT277-GI |
| Unit size (WxHxL), mm |
456x274x1030 |
305x270x990 |
305x270x820 |
305x270x910 |
305x270x910 |
453x274x824 |
| Power supply size (WxHxL), mm |
365x289x392 |
365x289x392 |
365x289x392 |
365x289x392 |
365x289x392 |
365x289x392 |
| Umbilical length, m |
2.5 |
Operating requirements
| Model |
NT242 |
NT253 |
NT273 |
NT273-XIR |
NT277 |
NT277-GI |
| Cooling |
stand alone chiller |
air |
| Room temperature, °C |
15-30 |
| Relative humidity (noncondensing), % |
20-80 |
| Voltage |
90-240 VAC, single phase 50/60 Hz |
| Power, kVA |
< 1 |
< 0.5 |
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 1064 nm.
2) Available wavelength range. Standard tuning range options are 4.1-6 μm or 6-12 μm. Custom tuning ranges are available.
3) Inquire about tuning curves for typical outputs at other wavelengths.
4) Inquire about other pulse repetition rates. For some models up to 2.5 kHz PRR is possible.
5) 100 Hz version is available. Pulse energy specification is >0.9 mJ at 450 nm.
6) 500 Hz version is available for higher pulse energy.
7) <10 cm⁻¹ option is available for whole tuning range.
8) Measured at the wavelength indicated in the “Pulse energy” specification row.
9) Ask for the separate NT240 series brochure.
10) Beam diameter is measured at the FWHM level at the laser output and can vary depending on the pump pulse energy.
11) Separate output port for the pump beam is standard. Output ports for other available harmonics are optional.
12) The laser max pulse energy will be optimized for best OPO performance. The actual pump laser output can vary with each unit we manufacture.
13) FWHM measured with photodiode featuring 1 ns rise time and 300 MHz bandwidth oscilloscope.
