Faraday Optical Isolator, Mid-IR, 4 mm Aperture, 4550 nm Center

The ISO-FRDY-04-4550-N Faraday Optical Isolator is essentially a uni-directional light valve for Mid-IR Lasers. It is used to protect a laser source from destabilizing feedback or actual damage from back-reflected light. This 4550 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 4 mm clear aperture and a 4500 to 4600 nm wavelength range. Horizontal input and 45 degree clockwise polarization output.