Quick Liquid Crystal Variable Retarders QLCVR-H20-C

2-inch Quick Liquid Crystal Variable Retarder, Half-Wave, Uncompensated

The LBTEK 2-inch Half-Wave Liquid Crystal Variable Retarder is coated with corresponding anti-reflection coatings for the operating wavelength ranges of 400-700 nm, 700-1100 nm, or 1100-1700 nm. Under the control of an external AC voltage (DC voltage not allowed), it can achieve flexible adjustment of retardation between approximately 200 nm and λ/2.

With a clear aperture of Ø20 mm, it is mounted in a mechanical housing with attached wiring. The mechanical housing is compatible with Ø2-inch optical component mounts and is marked with the fast axis direction of the liquid crystal variable retarder for convenient optical path alignment by users.

Key Features

• Clear Aperture: Ø20 mm
• Mechanical housing compatible with Ø2-inch optical component mounts
• Operating wavelength options: 400-700 nm, 700-1100 nm, or 1100-1700 nm

Typical Applications

• When used as a polarization modulator, the polarization direction of the incident linearly polarized light should be at a 45° angle to the fast axis of the liquid crystal variable retarder to achieve the widest adjustment range.
• When used as a pure phase retarder, the polarization direction of the incident linearly polarized light should be at a 0° angle to the fast axis of the liquid crystal variable retarder.