Optical transmitter

摘要

An optical transmitter, comprising: a master laser device for generating a master signal; one or more slave laser devices, injected with the master signal such that signals generated by the one or more slave laser devices are phase-locked with the master signal; an input for receiving one or more data streams to be transmitted, the one or more data streams being used to modulate respectively the one or more slave laser devices, such that each signal generated by the one or more slave laser devices respectively comprises a modulated part and a carrier part; and an interfering arrangement, for destructively interfering the signals generated by the one or more slave laser devices with a signal derived from the master signal, so as to generate an output signal in which the carrier part is at least partially cancelled. In embodiments, the transmitter comprises multiple slave laser devices, whose outputs can be coherently multiplexed together to generate multiple-bit output signals.

主权项

1. An optical transmitter, comprising:
a master laser device configured for generating a master optical signal; one or more slave laser devices in communication with the master laser device and configured to be injected with the master optical signal such that slave optical signals generated by the one or more slave laser devices are phase-locked with the master optical signal; a transmission data stream input configured for receiving one or more transmission data streams to be transmitted, the one or more transmission data streams being used to amplitude modulate respectively the one or more slave laser devices such that each slave optical signal comprises a modulated part and a carrier part; and an optical interfering arrangement configured for destructively interfering the slave optical signals with an optical interfering signal derived from the master optical signal so as to generate an output optical signal in which the carrier part is at least partially cancelled.