General Optics

Beam Displacer

Build fiberoptic multiplexing devices - including circulators, WSS, and interleavers - plus high-power isolators for fiber lasers - with our birefringent optics.

Our compact YVO4 beam displacers exhibit high birefringence at 0° incidence, plus high transmission and good thermal and mechanical properties, making them ideal for use as polarization-based beam separators over wavelengths from 500 nm to 5 μm.

Beam Displacer Capabilities

Specify dimensions, operating wavelength, coatings, and optical axis orientation to get the beam separation required for your application.

Typical Beam Displacer Specifications

Typical Dimensions

2 x 2 x 7 mm 

2.6 x 2.6 x 10 mm

Optical Axis Orientation Tolerance



λ/10 at 632.8 nm

Wavefront Distortion

λ/4 at 632.8 nm

Surface Quality


Clear Aperture


AR Coating

R<0.20% at center wavelength ±40 nm