Patent ID: 6707960
Filing Date: 2004-03-16
Classification: G02B

Abstract:
An optical switch comprising:a triple fiber collimator for receiving an optical signal from a first fiber and outputting the optical signal to a second fiber or a third fiber; a beam deflector having a first portion and a second portion; and a reflector, the beam deflector residing between the reflector and the triple fiber collimator; wherein the optical signal travels through the first portion of the beam deflector, is reflected by the reflector and is output over the second fiber when the beam deflector is in a first position; and wherein the optical signal travels through the second portion of the beam deflector, is reflected by the reflector and is output over the third fiber when the beam deflector is in a second position; and wherein the optical signal has a beam separation angle between a beam incident upon the reflector and a beam reflected by the reflector, and wherein the beam deflector has an index of refraction (n) and a first angle (&agr;), wherein the beam separation angle, (&bgr;) and a first angle (&agr;) of the beam deflector obey the relationship &bgr;=sinâˆ’1(nÂ·sin{&agr;âˆ’(1/n)sinâˆ’1[sin(2&agr;âˆ’sinâˆ’1(nÂ·sin &agr;))]}).