optical switch

Show Summary Details

Quick Reference

A device whose optical transmission properties (e.g. refractive index and polarizing properties) can be varied by an externally applied field or by some other external influence. Electric, magnetic, and surface acoustic wave techniques are all used for this purpose. By these means, light may be deflected away from a detector, thus switching the beam. LCD shutters are also used. The light that is processed in this way often originates in a laser source. Optical switches can be used, for example, as logic elements (see optical computing).

Subjects: Computing.

Reference entries

Users without a subscription are not able to see the full content. Please, subscribe or login to access all content.