A ten-user truly asynchronous gigabit coherent-optical-code-division-multiple-access (OCDMA) transmission was experimentally demonstrated without using any timing coordination. The enabling technologies are a record-length 511-chip superstructured-fiber-Bragg-grating (SSFBG) en/decoder and a supercontinuum (SC)-based optical-thresholding technique to significantly suppress the signal interference beat noise as well as the multiple-access-interference (MAI) noise.
© 2006 IEEE
Taro Hamanaka, Xu Wang, Naoya Wada, Akihiko Nishiki, and Ken-ichi Kitayama, "Ten-User Truly Asynchronous Gigabit OCDMA Transmission Experiment With a 511-Chip SSFBG En/Decoder," J. Lightwave Technol. 24, 95- (2006)