Features

  • Numerous predefined resonance frequencies
  • Individual resonance frequencies on demand
  • BBAR for UV ... LWIR with R_avg < 1% (typ.)
  • Various low RAM options
  • High transmission with T>98% (typ.)
  • High efficiency / low RF drive power/ high Q-factor
  • Damped piezo- and acoustic resonances
  • Standard large aperture for easy alignment
  • Mounting options for s- and p-polarised light

Typical Applications

  • Laser Frequency Stabilisation (LFS):
  • => Pound-Drever-Hall (PDH)
  • => Frequency Modulation Spectroscopy (FMS)
  • => Phase Modulation Spectroscopy (PMS)
  • => Modulation Transfer Spectroscopy (MTS)

Exemplary datasheet

PDH/FM/MTS
PDH FM MTS
Standard frequencies fo (MHz) {5,10,15,20,25,50,80} {5,10,15,20,25} {3,5,10,15,20}
Frequency tolerance Δfo (MHz) +/-0.5 +/-0.5 +/-0.5
Tuning range (%) +/-30
Wavelength λo (nm) UV...LWIR UV...LWIR UV...LWIR
Optical transmission (%) @ λo typ. >97 typ. >97 typ. >97
Crystal aperture (mm²) typ. 3x3 typ. 3x3 typ. 3x3
Typ. Modulation depth βo (rad) 1.08 0.6 up to 3.14
Matching RF driver QDR200 QDR200 QDR200
Drawing
Select your model

Required Information

Optical power*
Beam diameter*
Required modulation depth*
Additional Information
Quantity

Choose Your Options

-

Tuning: +T

  • tunable resonance frequency fo
  • tuning range: ca. fo +/- 15% (typ.)
  • for precision frequency adjustment &
  • frequency drift compensation
  • extended tuning ranges available

DC port: +DC

  • Extra DC-port (SMA)
  • Bandwidth 0-10kHz (typ.)
  • for birefringence compensation,
  • active RAM suppression &
  • work point adjustment (AM)
  • compatible with several housing types

T-control: +TXC

  • allows T-ctrl. & stabilisation of EOMs
  • for active cooling of high power models
  • & active RAM suppression
  • incl. therm. mounting, T-sensor, TEC
  • requires separate Temp.-controller
  • compatible with several housing types

Alignment: +AL5

  • Compact 5-axis stage
  • with X, Y, and Z linear translation &
  • pitch and yaw adjustment
  • for precision EOM/Laser alignment
  • compatible with several housing types

Brewster cut: +BC

  • Ref.: Optics Letters 5584 Vol. 41, No. 23
  • optimal RAM suppression
  • with & without beam displacement
  • aperture: D1.5mm (or D2.5mm)
  • EOM housing: 45x30x25mm^3

Wedge: +W

  • wedge angle: 4°
  • number of wedged facets: 1 (one)
  • AR coating: UV | ... | LWIR
  • for RAM & etalon effect suppression
  • https://doi.org/10.1364/OL.41.003331
  • compatible with several housing types

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