Chirp-managed, electroabsorption-modulated laser

摘要

An optical transmitter comprising:an optical source modulated with an input digital data signal so as to generate a first, frequency-modulated digital signal; andan amplitude modulator, modulated with the logical inverse of the input digital data signal, for receiving the first, frequency-modulated signal and generating a second, amplitude-modulated and frequency-modulated digital signal;wherein the optical source and the amplitude modulator are each configured so as to produce positive transient chirp.;A method for transmitting a signal, the method comprising:generating a first, frequency-modulated digital signal by modulating an optical source with an input digital data signal; andproviding a second, amplitude-modulated and frequency-modulated digital signal by passing the first, frequency-modulated digital signal through an amplitude modulator while modulating the amplitude modulator with the logical inverse of the input digital data signal;wherein the optical source and the amplitude modulator are each configured so as to produce positive transient chirp.