OPTICAL COMMUNICATIONS METHOD AND APPARATUS

摘要

Provided are an optical communication method and apparatus. The method is executed in a communication node comprising an input optical modulator array and an output optical modulator array; the input optical modulator array comprises N input optical modulators; M is larger than the number of the output optical modulators which can be covered by one input optical modulator, N is larger than the number of the input optical modulators which can cover the same output optical modulator. The method comprises: determining at least two local input areas from the input optical modulator array, each input optical modulator in each local input area being used for receiving nonlocal signal light; and determining at least two local output areas from the output optical modulator array, each output optical modulator in each local output area being used for transmitting the nonlocal signal light, at least two local input areas and at least two local output areas being in one-to-one correspondence, and each input optical modulator in one local input area can transmit the signal light to each output optical modulator in the corresponding local output area.