NT270 series

Tunable Wavelength NIR-IR Range DPSS Lasers
  • DPSS pump laser and OPO system
  • Tuning from 2500 to 12000 nm
  • <9 ns pulse duration
  • Narrow linewidth
  • DPSS pump laser and OPO system
  • Tuning from 2500 to 12000 nm
  • <9 ns pulse duration
  • Narrow linewidth

Features & Applications


  • Integrates DPSS pump laser and OPO into single housing
  • Separate output ports for the pump laser and OPO beams
  • OPO output wavelength range from 2500 nm to 12000 nm (depending on model)
  • Narrow linewidth
  • Hands-free tuning
  • <9 ns pulse duration
  • Remote control pad
  • PC control via USB (RS-232 is optional) and LabVIEM™ drivers


  • Scanning Near-field Optical Microscopy (s-SNOM) microscopy
  • Single molecule vibrational spectroscopy
  • IR spectroscopy
  • Gas spectroscopy


NT270 series tunable laser systems integrates into a single compact housing a nanosecond Optical Parametric Oscillator (OPO) and Diode-Pumped Solid–State (DPSS) Q-switched pump laser.

Diode pumping enables fast data acquisition at high pulse repetition rates up to 1 kHz while avoiding frequent flashlamp changes that are common when flashlamp pumped lasers are used. The pump lasers do not require water for cooling, thus further reducing running and maintenance costs.

All lasers feature motorized tuning across the specified tuning range. The output wavelength can be set from control pad with backlit display that is easy to read even while wearing laser safety glasses. Alternatively, the laser can be controlled also from personal computer through USB (RS-232 is optional) interface using supplied LabVIEW™ drivers.

High conversion efficiency, stable output, easy maintenance and compact size make our systems excellent choice for many applications.

NT270 series available models

NT277High pulse repetition rate OPO producing tunable output in 2500 – 4475 nm spectral range
NT277-XIRTunable output from NIR to far-IR range, 2500 nm to 12 000 nm


Model NT277NT277-XIR
OPO 1)
Wavelength range
    Idler2500 – 4475 nm2500 – 4475 nm
4500 – 12000 nm 2)
Pulse energy 3)
    Idler80 μJ at 3000 nm80 µJ at 3000 nm
20 µJ at 7000 nm
Pulse repetition rate1000 Hz
Linewidth 4) <10 cm-1 <12 cm-1
Tuning resolution 5)
    Idler1 cm⁻¹
    Idler vertical horizontal
Typical beam diameter 6) 7)4 mm
Pump wavelength1064 nm
Max pump pulse energy 8)1.9 mJ
Pulse duration 9)<10 ns
Beam qualityfit to Gaussian >90%
Pulse energy stability (StdDev) < 0.5 %
Unit size (W × L × H)305 × 701 × 270 mm
Power supply size (W × L × H)365 × 395 × 290 mm
Umbilical length2.5 m
Room temperature18 – 27 °C
Relative humidity20 – 80 % (non-condensing)
Power requirements90 – 240 V AC, single phase 50/60 Hz
Power consumption< 0.5 kVA
  1. Due to continuous improvement, all specifications are subject to change. Parameters marked typical are illustrative; they are indications of typical performance and will vary with each unit we manufacture. Unless stated otherwise all specifications are measured at 3000 nm for NT277, NT277-XIR unit and at 7000 nm for NT277-XIR units and for basic system without options.
  2. Available wavelength range. Custom tuning ranges are available.
  3. Inquire about tuning curves for typical outputs at other wavelengths.
  4. Higher energy 10 – 150 cm⁻¹ option is available for 2500 – 4475 nm tuning range.
  5. For manual input from PC. When wavelength is controlled from keypad, tuning resolution is 1 nm.
  6. Measured at the wavelength indicated in the “Pulse energy” specification row.
  7. Beam diameter is measured at the 1/e² level at the laser output and can vary depending on the pump pulse energy.
  8. The laser max pulse energy will be optimized for best OPO performance. The actual pump laser output can vary with each unit we manufacture.
  9. Measured at FWHM level with photodiode featuring 1 ns rise time and 300 MHz bandwidth oscilloscope.

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.



Ordering information

Send request about NT270