| 摘要 |
Optical communication system apparatus (1360) and methods of operating an optical communications system (1100, 1200) are described, wherein a multiple laser source (1360) is utilized to provide channel synchronization signals for the system. The laser source utilizes a plurality of distributed feedback (DFB) lasers. The output of each DFB laser is phase modulated, and the phase modulated outputs are amplified, shaped and multiplexed together.
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