The ISO-FRDY-08-1030-W Faraday Optical Isolator is essentially a uni-directional light valve. It is used to protect a laser source from destabilizing feedback or actual damage from back-reflected light. This 1030 nm high power free space optical isolator is packaged in a compact cylindrically shaped magneto-optic device with a base plate for ease of mounting into an optical train. It has a 8 mm clear aperture and a 1017 to 1043 nm wavelength range. Horizontal input and vertical polarization output. This -W version includes a 1/2 waveplate.
Our high power Faraday optical isolators use high damage threshold Fused Silica polarizing beamsplitter (PBS) cubes that are optically contacted rather than cemented. They also utilize double escape ports for added application flexibility.
We offer versions with an added zero order 1/2 wave plate (-W models) at the output stage so that the direction of the output beam polarization can be rotated to a desired direction.
The TGG crystal utilized in our Faraday isolators creates a large Verdet constant that ultimately describes the strength of the Faraday effect and provides effective isolation of back-reflected light. Additionally, these isolators have low absorption as a function of the TGG crystal and polarizers, resulting in reliable transmission of light in the forward direction.
These isolators are packaged in a compact, cylindrically-shaped magneto-optic device with a base plate for easy mounting into an optical train.
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