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TOPAG Lasertechnik GmbH
Nieder-Ramstädter Str. 247
64285 Darmstadt
Telefon: +49 6151 4259 78
Telefax: +49 6151 4259 88 
E- mail: info [at] topag.de 

NT200 - Serie, abstimmbar

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NT200 - Serie, abstimmbares Nanosekunden Komplettsystem, Dioden-gepumpt

NT200

Das System besteht aus einem OPO und einem DPSS Nd:YAG Pumplaser in einem Gehäuse. Dabei decken die Modelle insgesamt einen Wellenlängenbereich von 335nm bis 12µm ab. Zudem sind die Einzellinien des Pumplasers (1064/532nm) separat nutzbar. Die Repetitionsrate liegt entweder bei 500Hz, 1kHz oder bei bis zu 10kHz, wobei die Pulsenergie bis zu 900µJ betragen kann. Die Pulsdauer liegt bei 6-9ns.

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Tab 1

Features

  • Integrates DPSS pump laser and OPO into single housing
  • Separate output ports for the pump laser and OPO beams
  • OPO output wavelength range from 335 nm to 12000 nm
  • Pulse repetition rates up to 10 kHz
  • Narrow linewidth
  • Hands-free tuning
  • 6-9 ns pulse duration of pump laser
  • Remote control pad
  • PC control via USB (RS-232 is optional) and LabVIEM™ drivers

Applications

  • Laser-induced fluorescence
  • Photolysis
  • IR spectroscopy
  • Photobiology
  • Remote sensing
  • Metrology
  • Gas spectroscopy
  • Other laser spectroscopy applications

NT200 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 10 kHz (depending on model) while avoiding frequent flashlamp changes that are common when flashlamp pumped lasers are used.

Most of 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.

NT200 series available models

Model Feature
NT252 Highest pulse energy in near IR range, high efficiency second harmonic generator
NT253 Variable pulse repetition rate in 0 – 10 kHz range, 700 – 900 nm and 1300 – 2200 nm tuning range
NT273 Fixed wavelength OPO producing eye-safe output at 1572 nm.
NT273-XIR Tunable output in mid to far-IR range from 4100 nm to 12 000 nm.
NT277 High pulse repetition rate OPO producing tunable output in 2500-4475 nm spectral range.

Tab 2
Specifications 1)

Model NT252 NT253-10K NT273 NT273-XIR NT277
OPO
Wavelength range
Signal 670-1063 nm 700-900 nm 1572 nm - -
Idler 1064-2600 nm 1300-2200 nm 3293 nm 4500-12000 nm 2) 2500-4475 nm
SH or SFG 335-531 nm 350-450 nm - - -
Pulse energy 3)
OPO 900 µJ at 800 nm 25 µJ at 800 nm 400 µJ at 1572 nm 20 µJ at 7000 nm 150 µJ at 3000 nm
SH or SFG 180 µJ at 400 nm 2 µJ at 400 nm - - -
Pulse repetition rate 4) 1000 Hz 0-10 kHz 0-1000 Hz 5) 1000 Hz 1000 Hz 5) 6)
Linewidth7) <8 cm-1 <20 cm-1 <3 cm-1 <6 cm-1 10-150 cm-1 8)
Scanning step
Signal 0.1 nm - - -
Idler 1 nm - 1 nm 1 nm
SH or SFG 0.05 nm - - -
Polarization
Signal horizontal vertical vertical - -
Idler vertical vertical horizontal horizontal vertical
SH or SFG horizontal horizontal - - -
Typical beam diameter 9) 10) 2.5 mm 2.5 mm 2 mm 4 mm 4 mm
Pump laser
Pump wavelength11) 532 nm 1064 nm
Max pump pulse energy 12) 4.5 mJ 150 µJ 1.9 mJ 1.9 mJ 4 mJ
Pulse duration 13) <8 ns <10 ns <9 ns
Beam quality fit to Gaussian > 90 %
Pulse energy stability (StdDev) < 3 % < 1 %
Physical characteristics
Unit size (WxLxH) 453x1030x274 mm 320x800x120 mm 305x820x270 mm 305x910x270 mm
Power supply size (WxLxH), mm 365x392x289 mm 472x461x289 mm 365x392x289 mm
Umbilical length 2.5 m
Operating requirements
Cooling stand-alone chiller air
Room temperature 15-30 °C
Relative humidity 20-80 % (noncondensing)
Power requirements 90-240 VAC, single phase 50/60 Hz
Power consumption < 1 kVA < 0.5 kVA

1) Due to continuous improvement, all specifications are subject to change without notice. For latest product information please visit EKSPLA. 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 4100 – 6000 nm or 6000 – 12000 nm. Custom tuning ranges are available.

3) Inquire about tuning curves for typical outputs at other wavelengths.

4) Inquire for other pulse repetition rates. For some models up to 20 kHz PRR is possible.

5) 500 Hz version is available for higher pulse energy.

6) 100 kHz version is available. Please contact Ekspla for more details.

7) In signal range.

8) <10 cm-1  option is available for whole tuning range.

9) Measured at the wavelength indicated in the “Pulse energy” specification row.

10) Beam diameter is measured at the 1/e2 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.

 

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Tab 5
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Beschreibung 1
NT200 series tunable wavelength nanosecond DPSS laser
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Typical output pulse energy of the NT252-SH tunable laser
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Beschreibung 3
Typical output pulse energy of the NT277 tunable laser
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Beschreibung 4
NT273 series nanosecond tunable wavelength DPSS laser head dimensions
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