Title :
The impact of group velocity on frequency-hopping optical code division multiple access system
Author :
Zuo, Chao ; Ma, WenHua ; Pu, Hongtu ; Lin, Jintong
Author_Institution :
Beijing Univ. of Posts & Telecommun., China
fDate :
10/1/2001 12:00:00 AM
Abstract :
In this paper, we develop a systematic method that employs transfer function considering encoder, fiber channel, and decoder to analyze the frequency-hopping (FH) optical code-division multiple-access (OCDMA) system. We analyze the FH-OCDMA system when both single-mode fiber and dispersion-shifted fiber are employed as the transmission medium. The difference of group velocities affects system performance more seriously than dispersion effect does. The results show that single-mode fiber is not proper for a FH-OCDMA system, even if the transmission length is no more than 1 km. The dispersion-shifted fiber is suitable for a FH-OCDMA system, especially in an access network. We also propose an optical device to compensate the group velocities
Keywords :
code division multiple access; compensation; optical fibre dispersion; optical fibre subscriber loops; FH-OCDMA system; access network; decoder; dispersion effect; dispersion-shifted fiber; encoder; fiber channel; frequency-hopping optical code division multiple access system; group velocities; group velocity; single-mode fiber; system performance; systematic method; transfer function; transmission length; transmission medium; All-optical networks; Decoding; Frequency conversion; High speed optical techniques; Multiaccess communication; Optical devices; Optical fiber dispersion; Optical frequency conversion; Optical pulses; Pulse modulation;
Journal_Title :
Lightwave Technology, Journal of
