Description

Meadowlark’s newest liquid crystal (LC) product, the high speed LC variable retarder (HS LCVR) has a 10X speed improvement over our award-winning standard LCVR. The sub-millisecond speeds are achieved without the 50/50 duty cycle drive scheme required by our ferroelectric liquid crystal components, but are nearly as fast. The new HS LCVR uses nematic liquid crystal materials to electrically control polarization and provide tunable retardation by changing the effective birefringence of the material with applied voltage, thus altering the input polarized light to any chosen elliptical, linear or circular polarization.

Meadowlark Optics High-Speed Liquid Crystal Variable Retarder (HLC)

Specifications

Waveplate Type (Retardation Order): Zero Order, Multiple Order, Achromatic
Material: Liquid Crystal
Mounting: Mounted
Shape: Round
Size (Largest Dimension): 50.8 mm
Design Wavelength: 532 nm
Surface Quality (Scratch-Dig): 40-20
Retardation: Lambda/2
Retardation Tolerance: Custom
Transmitted Wavefront Distortion (TWD): <= Lambda/4
Wavelength Range: 450-700 nm
Typical LC Rise Time (10-90% @532nm): 50 us
Typical LC Fall Time (90-10% @532nm): 500 us

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Features

  • Sub-millisecond speeds
  • Standard LC Drive Schemes
  • Includes heated housing
  • Precision non-mechanical retardation control

Applications

  • Variable Attenuators and Rotators
  • Variable Beamsplitters
  • Spatial Light Modulators
  • Non-Mechanical Shutters
  • Beam Steerers
  • Optical Compensators
  • Polarimeters
  • Tunable Filters

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