Specifications 1)
| Model |
NT352 |
NT352A |
NT352B |
NT352C |
| OPO |
| Wavelength range |
| Signal |
670-1064 nm |
| Idler 2) |
1064-2300 nm |
| OPO output pulse energy3) |
30 mJ |
60 mJ |
100 mJ |
125 mJ |
| Linewidth |
<10 cm-1 |
| Scanning step: |
| Signal (670-1064 nm) |
0.1 nm |
| Idler (1064-2300 nm) |
1 nm |
| Pulse duration4) |
3-5 ns |
| Typical beam diameter5) |
6 mm |
8 mm |
10 mm |
12 mm |
| Typical beam divergence6) |
< 2 mrad |
| Polarization |
| Signal beam |
horizontal |
| Idler beam |
vertical |
| Pump laser7) |
| Pump wavelength |
532 nm |
| Max pump pulse energy |
110 mJ |
230 mJ |
400 mJ |
500 mJ |
| Pulse duration |
4-6 ns |
| Beam quality |
"Hat-top" in near field. Close to Gaussian in far field |
| Beam divergence |
< 0.5 mrad |
| Pulse energy stability (Std. Dev.) |
< 2.5 % |
| Pulse repetition rate |
10 or 20 Hz 8) |
10 or 20 Hz |
10 Hz 8) |
| Physical characteristics |
| Unit size (WxHxL), mm |
446x260x610 mm |
446x260x1020 mm |
| Power supply size (WxHxL), mm |
330x585x490 mm |
550x530x600 mm |
| Umbilical length, m |
2.5 m |
| Operating requirements |
| Water consumption (max 20 °C) 9) |
6 l/min |
10 l/min |
| Room temperature |
15-30 °C |
| Relative humidity (non-condensing) |
20-80 % |
| Mains voltage10) |
208 or 240 VAC, single phase 50/60 Hz |
| Power consumption11) |
1.8/3.4 kVA |
3.4 kVA |
5 kVA |
¹⁾ All specifications are subject to change without notice. The 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 800 nm.
²⁾ Tuning range extension to 2600 nm is optional.
³⁾ Measured at 800 nm. See tuning curves for typical outputs at other wavelengths.
⁴⁾ FWHM measured with photodiode featuring 500 ps rise time and 600 MHz bandwidth oscilloscope.
⁵⁾ Beam diameter is measured at 800 nm at the FWHM level and can vary depending on the pump pulse energy.
⁶⁾ Full angle measured at the FWHM level at 800 nm.
⁷⁾ Separate output port for the 532 nm beam is standard. Output for 1064 nm beam is optional. Pump laser output will be optimised for OPO operation and specification may vary with each unit we manufacture.
⁸⁾ Pulse repetition rates up to 30 Hz are possible. Inquire for pulse energy and other specifications.
⁹⁾ At 10 Hz pulse repetition rate. Air cooled power supply is available as option.
¹⁰⁾ Mains voltage should be specified when ordering. 20 and 30 Hz versions of the laser might require three phase mains.
¹¹⁾ At 10/20 Hz pulse repetition rate. Required current rating might be calculated by dividing power consumption value by mains voltage value. | 
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