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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] 


Tunable OPCPA system UltraFlux

UltraFlux  Laserhead

System generates 30fs pulses (10fs optional), which can be automatically tuned in 680-960nm wavelength range. Up to 0.35mJ pulse energy with better than 1% pulse-to-pulse stability at 1kHz repetition rate is achieved by using a state of the art OPCPA technology. Useful options are available: super continuum output, CEP stabilization, Idler (1200-2200nm), second harmonic (345-475nm) and third harmonic (235-315nm) outputs.



Bezeichnungen der Tabs

  • Description
  • Specifications
  • Pictures
Tab 1

  • Based on the novel OPCPA (Optical Parametric Chirped Pulse Amplification) technology - simple and cost-efficient operation
  • Hands free wavelength tuning from 680 to 960 nm
  • 30 fs pulse duration (10 fs is available)
  • 1 kHz repetition rate
  • 0.35 mJ pulse energy
  • Excellent pulse stability: < 1 %
  • Fiber laser based front-end (patent application No. EP2924500)
  • Small footprint
  • Compact picosecond pump laser


  • Femtosecond pump-probe spectroscopy
  • Nonlinear spectroscopy
  • High harmonic generation
  • Your application is welcome


  • Amplified and compressed supercontinuum output (1 μJ, 10 fs, 680 – 960 nm)
  • CEP stabilization
  • Idler output: 1200 – 2200 nm
  • Second harmonics: 345-475 nm
  • Third harmonics: 235-315 nm

UltraFlux is the first compact high energy tunable wavelength femtosecond laser system which incorporates the advantages of ultrafast fiber laser, solid-state and parametric amplification technologies in less than 1 square meter footprint box. Patent pending (application No. EP2924500) OPCPA front end technology uses the same picosecond fiber laser for seeding both picosecond DPSS pump laser and femtosecond parametric amplifier by spectrally broadened output. This approach greatly simplifies the system – excludes femtosecond regenerative amplifier and eliminates the need of pump and seed pulse synchronization. In addition to that, contrast of the output pulses in picosecond to nanosecond time scale is potentially increased.

System generates 30 fs pulses, which can be automatically tuned in 680-960 nm wavelength range. Less than 10 fs pulses are obtained in a few-cycle operating regime. Up to 0.35 mJ output pulse energy with better than 1% pulse-to-pulse stability at 1 kHz repetition rate is achieved by using a state of the art OPCPA technology.

By incorporating parametric amplifier technology together with a novel ultrafast fiber laser helped to create and bring to the market a new tool for femtosecond pump-probe, nonlinear spectroscopy, emerging high harmonic generation experiments  and other femtosecond and nonlinear spectroscopy applications. With this laser ultrafast science breakthrough is closer to any photonics lab than ever before.

Tab 2
ModelUltraFlux FT2101
Max. pulse energy 0.35 mJ
Tunability 680-960 nm
Pulse duration 1) 30-50 fs
Pulse repetition rate 1 kHz
Pulse stability < 1 % rms
Footprint 1.2x0.75 m

1) 10 fs available

For latest product information please visit EKSPLA.

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Tab 5
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 UltraFlux  Laserhead
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 UltraFlux Spectra
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Performance data of UltraFlux series tunable femtosecond laser system
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 UltraFlux beam profile
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Typical beam profile of UltraFlux
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