Patent ID: 7542686
Filing Date: 2009-06-02
Classification: G02B,G02F,H04B

Abstract:
1. A process for operating on an incoming optical signal having a first state of polarization to produce an outgoing optical signal having a second state of polarization different from said first state and further processing said outgoing signal, said process comprising the steps of: introducing said incoming signal having said first state of polarization to a series of physically coupled sequences, wherein: controlling said sequences to operate without reset as allowed by said variable coupling strength of said variable optical coupler of said Type I sequence or said variable phase shift of said variable phase shifter of said Type II sequence, generating said outgoing optical signal having said second state of polarization from a combination of an output of said two waveguiding structures of said at least two Type I sequences, said at least two Type II sequences or said at least one each of a Type I sequence and a Type II sequence; and further processing said outgoing signal.