OFR has been in optical isolators from the beginning. In fact, OFR introduced the optical isolator to the world's photonics market. Having designed more than 100 models in response to customers' requirements since the early 1980s, OFR now produces more isolator models than any other manufacturer.

Faraday Rotator crystal rods are optically ground and polished in the OFR optical shop using OFR-designed tooling. End faces of the rotator rods are ground and polished to <5 arc seconds parallel. Thus, end-face specifications are maintained under OFR control. This, along with internal inspection (for inclusions and strain-birefringence) of 100% of all Faraday Rotator crystal rods used, insures that all Isolators meet OFR's discriminating specifications.

OFR manufactures Optical Isolators for virtually all lasers from 193 nm to 10.6 µm and beyond. Most models are available with low-power or high-power polarizers. All are permanent magnet, single-pass type Isolators.