Del Mar Photonics
Femtosecond harmonic generators
 
Second harmonic generators ASG-800 and ASG-1250 are developed for producing the coherent radiation at double frequency for femtosecond oscillator sources having output wavelength range at 800 nm (Ti:Sapphire lasers) and 1.25 Ám (Cr:Forsterite lasers).

Input wavelength range, nm 710-960; 1250
Input pulse width, fs > 20
Conversion efficiency 20-40%
Small walk-off angle
Low beam divergence
No heating

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Ti:Sapphire femtosecond oscillator Trestles - Trestles Finesse
Cr:Forsterite femtosecond oscillator Mavericks

    ASG800 ASG800-B* ASG1250
  Input wavelength, nm 710 - 960 800 1250
  Output wavelength range, nm 355 - 480 400 625
  Input pulse width, fs

> 20

  Input polarization

linear-horizontal

  Input average power, mW > 300 > 250
  Conversion efficiency > 22% > 35% > 30%
  Temporal broadening, fs < 100 < 60 < 60
  Output polarization

linear-vertical

  Dimensions, mm 280x140x186 300x300x186 280x130x186
  * - with additional optomechanical parts allowing negative GVD precompensation of the input pulse.

 

Third harmonic generator ATsG is developed for producing the coherent radiation at doubling and tripling frequency for TiSa femtosecond oscillator sources having output wavelength range from 710 to 960 nm.

Input wavelength range, nm 750-900
Input pulse width, fs > 20
Conversion efficiency 2-8%
Small walk-off angle
Low beam divergence
 No heating

pdf brochure

 

    SH output ATsG(TH)
  Input wavelength, nm 710 - 960 750-900
  Output wavelength range, nm 355 - 480 250-300
  Input pulse width, fs

> 20

  Input polarization

linear-horizontal

  Input average power, mW

400-1000

  Conversion efficiency 20-40%* 2-8%*
  Temporal broadening, fs < 100 < 200
  Output polarization linear-vertical linear-horizontal
  Dimensions, mm

480x222x192 

  * - depends on wavelength, input intensity and pulse duration

Del Mar Photonics

Featured customer: Francisco Bezanilla using Del Mar Photonics THG unit in in his experiments on measuring intramolecular distances with fluorescence resonance energy transfer (FRET).

Francisco Bezanilla using Del Mar Photonics THG unit in in his experiments on measuring intramolecular distances with fluorescence resonance energy transfer (FRET).

 

Del Mar Photonics