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OCDMA receiver with built-in all-optical clock recovery

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3 Author(s)
Idris, S.K. ; EEE Dept., Univ. of Strathclyde, Glasgow, UK ; Osadola, T.B. ; Glesk, I.

A receiver that incorporates an all-optical clock recovery approach for synchronisation suitable for use in incoherent OCDMA transmission is demonstrated. The developed solution was implemented and tested in a multiuser environment using the 2D-WHTS coding scheme on incoherent OCDMA transmission with 2.5 Gbit/s data rate. The receiver with built-in all-optical clock recovery was tested by taking the BER for the received data when synchronised with the all-optically recovered clock from the incoming OCDMA traffic and when an RF synthesiser was used to the generate the clock. Improvement of ~7.5 dBm was observed with the all-optical clock recovery approach. The related eye diagrams and the wavelength spectrum were also recorded.

Published in:

Electronics Letters  (Volume:49 ,  Issue: 2 )