Patent ID: 9660762
Date: 2017-05-23
CPC Classifications: H04B,H04J,H04L

Claim:
1. A method for transmitting a plurality of optical signals over multiple channels, comprising: (a1) coding a plurality of tributaries of data to be transmitted, thereby creating a plurality of coded tributaries; (a2) firstly rearranging the plurality of coded tributaries, thereby scrambling data of the plurality of coded tributaries among the plurality of coded tributaries, thereby outputting a plurality of rearranged output coded tributaries, such that one of the plurality of output coded tributaries includes data from each of the plurality of coded tributaries and remaining ones of the plurality of output coded tributaries each include data from two of the plurality of coded tributaries; (a3) modulating each one of a plurality of optical carriers with data of one of the plurality of output coded tributaries, thereby creating a plurality of modulated optical signals; (b1) transmitting the plurality of modulated optical signals; (b2) spatially multiplexing the plurality of modulated optical signals into a plurality of spatially multiplexed channels of an optical fiber; (b3) converting the plurality of spatially multiplexed optical signals of the optical fiber into a plurality of individual optical signals; (c) receiving the plurality of individual optical signals; (d) demodulating each of the plurality of individual optical signals into a plurality of electrical signals; (e1) decoding the electrical signals into a plurality of decoded tributaries; and (e) secondly rearranging the plurality of decoded tributaries, thereby recovering the plurality of tributaries of data of step (a1); wherein, a number of the plurality of tributaries of data is equal to or more than two and is less than or equal to a number of the multiple channels.