Optical Isolators
Source: Conoptics, Inc.
The unique feature of a Faraday rotator is its nonreciprocity, that is, the fact that the "handedness" of the polarization rotation
The unique feature of a Faraday rotator is its nonreciprocity, that is, the fact that the "handedness" of the polarization rotation it imparts on a transmitted beam is dependent on the beam's propagation direction. This capability allows the conception of many clever schemes to manipulate laser light in ways that are otherwise impossible or, at least, much more difficult to implement. By far the most common application of Faraday rotators is their use in optical isolators, devices used to protect laser sources from harmful back reflections.
Conoptics, Inc., 19 Eagle Road, Danbury, CT 06810. Tel: 800-748-3349; Fax: 203-790-6145.
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