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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 

NT230 - Serie, abstimmbar

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NT230 - Serie, abstimmbares Nanosekunden Komplettsystem, Dioden-gepumpt

NT230

Die Modelle der NT230-Serie decken einen Wellenlängenbereich von 193nm bis 2600nm ab, wobei die Linienbreite stets <5cm-1 ist. Die Systeme verfügen über eine Repetitionsrate von 50 oder 100Hz. Die maximale Pulsenergie liegt bei 10mJ. Die Pulsdauer beträgt 3-6ns. Zudem sind die Einzellinien des Dioden-gepumpten Nd:YAG Pumplasers (1064/532/355nm) separat nutzbar.

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Bezeichnungen der Tabs

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Tab 1

Features

  • Integrates DPSS pump laser and OPO into a single housing
  • Hands-free no-gap wavelength tuning from 193 to 2600 nm
  • High, up to 10 mJ pulse energy from OPO
  • 50 or 100 Hz pulse repetition rate
  • More than 1.5 mJ output pulse energy in UV
  • Less than 5 cm⁻¹ linewidth
  • 3 – 6 ns pulse duration
  • Remote control pad
  • PC control via USB port (RS232 is optional) and LabVIEW™ drivers
  • Optional separate output port for 355/532/1064 nm beam

Applications

  • Laser-induced fluorescence
  • Flash photolysis
  • Photobiology
  • Remote sensing
  • Metrology
  • Non-linear spectroscopy
  • Medical
  • Photo acoustic imaging

NT230 series lasers deliver high up to 10 mJ energy pulses at 100 Hz pulse repetition rate, tunable over a broad spectral range. Integrated into a single compact housing, the diode pumped Q-switched Nd:YAG laser and Optical Paramteric Oscillator (OPO) offers hands‑free, no-gap tuning from 193 to 2600 nm. With its 100 Hz repetition rate, the NT230 series laser establishes itself as a versatile tool for many laboratory applications, as laser induced fluorescence, flash photolysis, photobiology, metrology, remote sensing, etc.

Due to the innovative diode‑pumped design, NT230 series lasers features maintenance-free laser operation for an extended period of time and improved stability (compared with flash-lamp pumped counterparts). NT230 series systems can be controlled from a user-friendly remote control pad or/and a computer using supplied LabVIEW™ drivers. The control pad allows easy control of all parameters and features on a backlit system display that is easy to read even with laser safety eyewear.

Due to DPSS pump source, the laser requires little maintenance. It is cooled by a built-in chiller, which further reduces running costs. An OPO pump energy monitor allows monitoring of pump laser performance. A standard feature includes a separate output port for the 355 nm pump beam.

Accessories and optional items:

OptionFeatures
-SH Tuning range extension in UV range (210 – 409 nm) by second harmonics generation
-SF Tuning range extension in 300 – 409 nm range by sum-frequency generation
-SH/SFG Tuning range extension in 210 – 409 nm range by combining second harmonics and sum-frequency generator outputs for maximum possible pulse energy
-SCU Spectral filtering accessory for improved spectral purity of pulses
-H, -2H 1064 nm or 532 nm output via separate port
-FC Fiber coupled output in 350-700 nm range
-DUV Deep UV option in 193-209.9 nm

Tab 2
Specifications 1)

ModelNT230-50-SH/SFGNT230-100-SH/SFG
OPO
Wavelength range
Signal 405-709 nm
Idler 710-2600 nm
SH or SFG 210-405 nm2)
DUV 193-209.9 nm 3)
Pulse energy 4)
OPO 10 mJ
SH and SFG 1.5 mJ at 260 nm and 340 nm
DUV 0.2 mJ at 200 nm
Pulse repetition rate 5) 50 Hz 6) 100 Hz
Pulse duration 7) 3-6 ns
Linewidth8) <5 cm-1
Scanning step
Signal 0.1 nm
Idler 1 nm
SH and SFG 0.05 nm
Polarization
Signal horizontal
Idler vertical
SH and SFG vertical
OPO beam divergence 9) <2 mrad
Typical beam diameter 10) 4 mm
Pump laser
Pump wavelength 11) 355/1064 nm
Max pump pulse energy 12) 35/100 mJ
Pulse duration 7) 6-8 ns at 1064 nm
Physical characteristics
Unit size (WxLxH) 451x640x162 mm
Power supply size (WxLxH) 365x395x290 mm
Umbilical length 2.5 m
Operating requirements
Cooling built-in chiller
Room temperature 15-30 °C
Relative humidity 20-80 % (non-condensing)
Power requirements 90-240 VAC, single phase 50/60 Hz
Power consumption < 1 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 450 nm.

2) Tuning range of 210 – 405 nm is provided by SH/SFG option.

3) Tuning range of 192 – 209.9 nm is provided by DUV option.

4) See tuning curves for typical outputs at other wavelengths.

5) Inquire for other pulse repetition rates.

6) Variable repetition rate. Please contact Ekspla for more details.

7) FWHM measured with photodiode featuring 1 ns rise time and 300 MHz bandwidth oscilloscope.

8) Linewidth is <8 cm-1 210 - 405 nm range

9) Full angle measured at the FWHM level at 450 nm.

10) Beam diameter is measured at 450 nm at the 1/e2 level and can vary depending on the pump pulse energy.

11) Separate output port for the 3rd harmonics beam is standard. Output ports for other 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.

 

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Tab 5
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Beschreibung 1
NT230 series nanosecond tunable DPSS lasers 
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Beschreibung 2
Typical beam profiles of NT230 series lasers at 500 nm : near field 
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Beschreibung 3
Typical beam profiles of NT230 series lasers at 500 nm : far field 
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Beschreibung 4
Typical output pulse energy of NT230 laser 
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Beschreibung 5
NT230 series laser head dimensions
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