Coherent OCDMA communication systems

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Coherent optical code division multiple access (OCDMA) technique, where encoding and decoding are based on the phase and amplitude of optical field instead of its intensity, is receiving much attention for the overall superior performance over incoherent OCDMA and the development of compact and reliable en/decoders (E/D) such as spatial light phase modulator (SLPM), superstructured fiber Bragg grating (SSFBG) and multi-port array waveguide grating (AWG)-type E/D. In this paper, we will discuss several recent progresses in coherent OCDMA: a. Novel coding technology such as multi-phase-level SSFBG encoder, 50x50 multiport en/decoder and reconfigurable time domain spectral phase en/decoding; b. New signal modulation formats in OCDMA including DPSK, DQPSK, CSK and M-ary CSK; and c. Field trials of high capacity WDM/OCDMA systems.

Original languageEnglish
Title of host publicationProc. SPIE
Subtitle of host publicationBroadband Access Communication Technologies VI
EditorsB Dingel, R Jain, K Tsukamoto
Place of PublicationBellingham
Number of pages7
ISBN (Print)978-0-81948-925-8
Publication statusPublished - 2012
EventConference on Broadband Access Communication Technologies VI - San Francisco
Duration: 24 Jan 201226 Jan 2012


ConferenceConference on Broadband Access Communication Technologies VI
CitySan Francisco


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