Patent ID: 6816640
Filing Date: 2004-11-09
Classification: G02B

Abstract:
An optical switch comprising:a first input operable to provide a first input optical signal; a second input operable to provide a second input optical signal; a first output operable to transmit either of said first and second signals; a second output operable to transmit said first signal; a retro-reflector; a first deflector operable to rotate about an axis in opposite directions from a neutral position to a first and second state, said first deflector operable in said first state to direct said first input optical signal from said first input to a first point on said retro-reflector, said first deflector operable in said second state to direct said first input optical signal to a second point on said retro-reflector; a second deflector operable to direct said first input optical signal from said second point of said retro-reflector to said second output; a third deflector operable to direct said second input optical signal from said second input to a third point on said retro-reflector; and a fourth deflector operable to rotate about an axis in opposite directions from a neutral position to a first and second state, said fourth deflector operable in said first state to direct said first optical input signal from said first point on said retro-reflector to said first output, said fourth deflector operable in said second state to direct said second input optical signal from said third point on said retro-reflector to said first output.