Title :
Suppression of optical beat interference using synchronised CDMA technique and in-band clipping carrier
Author :
Wang, B.H. ; Hsiao, C.C. ; Way, W.I.
Author_Institution :
Dept. of Commun. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
fDate :
10/23/1997 12:00:00 AM
Abstract :
The authors propose adding a coherent in-band clipping carrier to a previously demonstrated Walsh-code-based synchronised CDMA (S-CDMA) technique to further suppress the optical beat interference (OBI). Experimental results showed that a negligible system power penalty can be achieved even when the OBI-induced intensity noise was as high as -90.9 dB/Hz. In addition, a large system dynamic range of 10 dB can be obtained to relax the tight power control requirement on S-CDMA signals
Keywords :
code division multiple access; interference suppression; light interference; optical communication; synchronisation; Walsh code; coherent in-band clipping carrier; dynamic range; intensity noise; optical beat interference suppression; power penalty; synchronised CDMA;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19971275
