Title :
Ten-user truly asynchronous gigabit OCDMA transmission experiment with a 511-chip SSFBG en/decoder
Author :
Hamanaka, Taro ; Wang, Xu ; Wada, Naoya ; Nishiki, Akihiko ; Kitayama, Ken-ichi
Author_Institution :
Dept. of Inf. & Commun. Technol., Osaka Univ., Japan
Abstract :
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.
Keywords :
Bragg gratings; code division multiple access; decoding; encoding; optical fibre networks; 511-chip SSFBG decoder; 511-chip SSFBG encoder; Gigabit OCDMA transmission; asynchronous OCDMA transmission; beat noise suppression; multiple-access-interference noise suppression; optical-code-division-multiple-access transmission; signal interference suppression; supercontinuum-based optical thresholding; superstructured-fiber-Bragg-grating; ten-user OCDMA transmission; Decoding; Fiber nonlinear optics; Multiple access interference; Nonlinear optics; Optical fiber subscriber loops; Optical network units; Optical noise; Optical recording; Passive optical networks; Ultrafast optics; Asynchronous transmission; beat noise; fiber Bragg grating (FBG); multiple access interference (MAI); optical code division multiple access (OCDMA); optical thresholding; supercontinuum;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2005.861126
