Patent ID: 7369715

Claim:
A photonic link having low residual carrier, for use in transmitting information between an electronic signal source and an electronic signal receiver, said photonic link comprising: a transmitter to accept electronic information from said electronic signal source and to transmit optical signals, said transmitter comprising an angle-modulated optical source to convert said electronic information into an angle-modulated optical signal; a first and second threshold optical frequency discriminator (TOFD), each TOFD biased to provide large even-order distortion, said first TOFD being complementary to said second TOFD, to provide a first and second intensity-modulated signal, said first intensity-modulated signal being complementary to said second intensity-modulated signal; a first optical transmission network to distribute said angle-modulated optical signal from said transmitter to each of the first and second TOFD; an optical signal receiver; and a second optical transmission network to transmit said complementary intensity-modulated signals between said first and second TOFD and said optical signal receiver, whereby the optical signal receiver reconstructs said complementary modulated signals into said electronic information for acceptance by the electronic signal receiver.