Patent ID: 6091864
Filing Date: 2000-07-18
Classification: G02F,H04B

Abstract:
An optical modulator comprising:an input splitter for splitting an optical signal into at least two parts;a first interferometer including a plurality of interferometer arms for transmitting the parts of the split optical signal and means for inducing an asymmetric electro-optic effect in the two parts of the optical signal;a second interferometer including a plurality of interferometer arms and means for inducing an asymmetric electro-optic effect in the two parts of the optical signal;first means for coupling the two parts of the optical signal after passing through the first interferometer and separating the optical signal into at least two parts which are transmitted through the second interferometer; andsecond means for coupling the two parts of the optical signal from the second interferometer and for providing first and second optical output signals;wherein chirp induced in one of the parts of the optical signal in the first interferometer is reduced in at least one of the optical output signals.