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Rapidly reconfigurable optical phase encoder-decoders based on fiber Bragg gratings

By Z. Zhang, C. Tian, M.R. Mokhtar, P. Petropoulos, D.J. Richardson and M. Ibsen


We demonstrate the capacity for fast dynamic reconfiguration of optical code-division multiple access (OCDMA) phase en/decoders based on fiber Bragg gratings and a thermal phase-tuning technique. The tuning time between two different phase codes is measured to be less than 2 s. An OCDMA system using tunable-phase decoders is compared with a system using fixed-phase decoders and, although the system using fixed-phase decoders exhibits a shorter output autocorrelation pulsewidth and lower sidelobes, the system using tunable-phase decoders has advantages of flexibility and a more relaxed requirement on the input pulsewidth

Topics: QC, TK
Year: 2006
OAI identifier:
Provided by: e-Prints Soton

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