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LiopTec | LiopStar
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LiopStar

Pulsed dye laser
  • Extreme narrow bandwidth system down to 0,02cm-1
  • Wide spectral range 197nm - 5000nm
  • Low ASE <0,5%
  • Repetition rates up to 100kHz

LiopTec | LiopStar

Features :
  • Extreme narrow bandwidth system down to 0,02cm-1
  • Wide spectral range 197nm – 5000nm
  • Low ASE <0,5%
  • Repetition rates up to 100kHz
  • High efficient laser resonator
  • Exchangeable grating
  • Gaussian near beam quality due to Bethune cells
  • Third dye cell for high power pump laser
  • Eroded stainless-steel case for oscillator and amplifier cuvettes for highest stability
  • New state-of-the art integrated electronics and user-friendly software
  • Intelligent PI control for FCU auto-tracking unit with temperature stabilized crystals
  • USB port
  • Remote control via TCP / IP protocol
  • Smallest footprint

Options:
Frequency conversion units :

  • Internal open loop frequency doubling with look-up-table   
  • Internal open loop frequency tripling and mixing with look-up-table *(1)
  • Auto-tracking *(2) FCU available for second-harmonic generation (SHG), third-harmonic generation (THG) *(1), sum- and difference frequency mixing (SFM, DFM) *(1, 3)
  • Intelligent PI-control corrects phase matching deviation of the look-up-table algorithm
  • High scan speed, up to 10 nm/min
  • Usable for repetition rates from < 1 Hz up to 250 kHz
  • Temperature control for crystals up to 70°C


Application :
  • Laser-induced fluorescence: LIF
  • Photolysis
  • Combustion and atmospheric studies
  • Light detection and ranging: LIDAR
  • Raman spectroscopy
  • Coherent anti-Stokes Raman spectroscopy: CARS

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  1. *THG, SFM and DFM operation requires an additional LSEH extension
  2. *Wavelength separation is required for autotracking operation
  3. *For narrowband operation a seeder for the Nd:YAG pump laser is recommend


Energy Output :

Dye UV/IR wavelength Pump Energy @ 10Hz Dye Laser Output Energy
SHG                  206 nm – 450 nm
Coumarin 120 220 nm 280 mJ @ 355 nm LiopStar-N >   5 mJ
Coumarin 307 250 nm 280 mJ @ 355 nm LiopStar-N >   5 mJ
Rhodamine 6G 280 nm 400 mJ @ 532 nm LiopStar-N > 25 mJ
DCM 320 nm 400 mJ @ 532 nm LiopStar-N > 25 mJ
THG *(1)   (requires an additional LSEH)          197 nm – 212 nm
Rhodamine B 200 nm 400 mJ @ 532 nm LiopStar-N 3 mJ
Rhodamine 101 205 nm 400 mJ @ 532 nm LiopStar-N 6 mJ
DCM 210 nm 400 mJ @ 532 nm LiopStar-N 6 mJ
DFM *(1,3)    (requires an additional LSEH)       1.4 μm – 5.0 μm
DCM 1.6 μm 400 mJ @ 532 nm LiopStar-E-N 6    mJ
Pyridine1 2.0 μm 400 mJ @ 532 nm LiopStar-E-N 5.5  mJ
Styryl 9 3.4 μm 400 mJ @ 532 nm LiopStar-E-N 800 μJ
LDS 867 4.7 μm 400 mJ @ 532 nm LiopStar-E-N 100 μJ

Linewidth Specifications
  Grating Tuning Range Linewidth
LiopStar 1800 l/mm, 90 mm 355 nm – 900 nm < 0.06 cm-1 @ 620 nm
LiopStar 2400 l/mm, 90 mm 355 nm – 740 nm < 0.06 cm-1 @ 570 nm
LiopStar 3000 l/mm, 90 mm 355 nm – 610 nm < 0.05 cm-1 @ 560 nm
LiopStar-N double 1800 l/mm, 90 mm 355 nm – 900 nm < 0.05 cm-1 @ 620 nm
LiopStar-N double 2400 l/mm, 90 mm 355 nm – 720 nm < 0.04 cm-1 @ 570 nm
LiopStar-N double 3000 l/mm, 90 mm 355 nm – 580 nm < 0.03 cm-1 @ 570 nm

Beam Specifications
Conversion Efficiency:
Nd:YAG pumped 355 nm		  20% @ 405 nm                       Exalite 404
 14% @ 460 nm                       Coumarin 47
Conversion Efficiency:
Nd:YAG pumped 532 nm		  25% @ 630 nm                       DCM
 28% @ 565 nm                       Rhodamine 6G
Wavelength Reproducibility  < 0.002 nm
Absolute Accuracy  <   0.01 nm
Scan Linearity  < 0.002 nm
Wavelength Stability  < 0.001 nm/°C
Divergence         0.5 mrad
Polarisation  >    98 %                                    vertical
ASE-background  <    0.5 %

Dimensions
LiopStar 1040 mm x 400 mm x 300 mm ± 10 mm, 70 kg
Beam input height 180 mm ± 10 mm
Beam output height 200 mm ± 10 mm

Requirements
Pump Laser Pulse Power 10 mJ … 1500 mJ (3rd amplifier),  s-pol
Voltage 110 V 6A / 220 V 3 A, 50/60 Hz, single phase
Computer Windows, one free USB port

Brochures & Datasheets :

   Pulsed dye laser Datasheet (pdf / English)

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