Abstract
OCDMA system are reviewed, particularly focusing on asynchronous coherent technology. Key techniques enabling asynchronous coherent OCDMA are discussed, including en/decoding techniques such as ultra-long superstructured FBG and multi-port encoder/decoder; differential-phase-shift-keying (DPSK) modulation, and forward-error-correction and M-ary OCDM will be also introduced aiming at the transmission security enhancement.
© 2009 OSA, IEEE Photonics Society, SPIE, COS, CIC
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