Open AccessInterference cancellation technique of optical AND gate receiver using optical thyristor
Author(s) -
Tae-Gu Kang
Publication year - 2008
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.16.014227
Subject(s) - thyristor , integrated gate commutated thyristor , gate turn off thyristor , optics , materials science , interference (communication) , optical switch , optoelectronics , electronic engineering , computer science , physics , telecommunications , electrical engineering , voltage , engineering , channel (broadcasting) , gate oxide , transistor
We demonstrate an interference cancellation technique of optical AND gate receiver using optical thyristor for fiber-optic code division multiple access (FO-CDMA) systems. In particular, we fabricate the optical thyristor operating as optical hard-limiter and evaluate that the optical AND gate receiver using fabricated optical thyristor excludes the peaks of side-lobe and cross-correlation result in the system performance degradation. It found that the optical AND gate receiver using optical thyristor excludes the intensity of interference signal resulting in that the peaks of side-lobe and cross-correlation can be fully eliminated for any two users. Therefore, the optical AND gate receiver using optical thyristor is shown to be effective to accommodate more simultaneous users.