|문의||김길석박사, 하윤미과장 (02-3461-1103)|
NT370 series tunable laser seamlessly integrates in a compact housing the nanosecond optical parametric oscillator and Nd:YAG Q-switched laser. Pumped by fundamental harmonics output the lasers provides tuning in mid- and far-infrared spectral range.
NT373-XIR model uses IR crystal based cascade OPO for tunable output in 4400 – 18000 nm range. Customized tuning ranges are available by request. The linewidth of NT373-XIR model is nearly constant across tuning range and it is less than 8 cm⁻¹.
NT377 model produces tunable output in 2500 – 4400 nm range. Pulse energy is exceeding 10 mJ for wavelengths shorter than 3600 nm, while linewidth is below 10 cm⁻¹ for the wavelengths longer than 3000 nm. Because of narrow linewidth of output radiation (typically in 6 – 10 cm⁻¹ range) the laser is suitable for many infrared spectroscopic applications, for example cavity ring-down spectroscopy, gas detection and remote sensing.
The device is controlled from the remote keypad or from PC through RS232 interface using LabView™ drivers that are supplied together with the system. The remote pad features a backlit display that is easy to read even while wearing laser safety glasses. System is designed for easy and cost-effective maintenance. Replacement of flashlamps can be done without misalignment of the laser cavity and deterioration of laser performance. OPO pump energy monitoring system helps to increase lifetime of the optical components.
|-AW||Water-air cooling option|
|-20||20 Hz PRR option|
|-H||Optional 1064 nm output|
|Wavelength range||2500 – 4400 nm||5500 – 18000 nm 2)|
|Output pulse energy 3)||12.5 mJ||1 mJ|
|Linewidth 4)||< 10 cm-1||< 8 cm-1|
|Scanning step||1 nm|
|Typical pulse duration 5)||3 – 5 ns|
|Typical beam diameter 6)||6 mm||8 mm|
|PUMP LASER 7)|
|Pump wavelength||1064 nm|
|Max pump pulse energy||300 mJ|
|Pulse duration||4 – 6 ns|
|Beam quality||"Hat-top" in near field|
|Beam divergence||< 0.5 mrad|
|Pulse energy stability (StdDev)||< 1 %|
|Pulse repetition rate||10 or 20 Hz|
|Unit size (W × L × H)||452 × 1020 × 270 mm|
|Power supply size (W × L × H)||330 × 520 × 670 mm|
|Umbilical length||2.5 m|
|Water consumption (max 20 °C) 8) 9)||10 l/min|
|Room temperature||18 – 27 °C|
|Relative humidity||20 – 80 % (non-condensing)|
|Power requirements 10)||208 or 240 V AC, single phase 50/60 Hz|
|Power consumption||1.5 kVA|
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.