Title :
10-Gb/s temporally coded optical CDMA system using bipolar modulation/balanced detection
Author :
Kim, Sun-Jong ; Kim, Tae-Young ; Park, Chul Soo ; Park, Chang-Soo
Author_Institution :
Dept. of Inf. & Commun., Gwangju Inst. of Sci. & Technol., South Korea
Abstract :
This study proposes and experimentally demonstrates a 10-Gb/s temporally coded optical code-division multiple-access system using bipolar modulation/balanced detection. For a proof-of-principle, two channels are constructed using one-stage ladder network. The interference noise channel is removed completely after balanced detection. It is shown that the proposed scheme has twice the eye opening compared with the system using single polarity. This increased eye opening can improve a receiver sensitivity by 3.7 dB at a bit-error rate of 10-9.
Keywords :
adjacent channel interference; code division multiple access; encoding; error statistics; optical fibre communication; optical modulation; optical receivers; telecommunication channels; 10 Gbit/s; balanced detection; bipolar modulation; bit-error rate; eye opening; interference noise channel removal; one-stage ladder network; optical CDMA; receiver sensitivity; temporal coding; Bit error rate; Modulation coding; Multiaccess communication; Multiple access interference; Optical modulation; Optical noise; Optical pulses; Optical receivers; Optical sensors; Optical transmitters; Balanced detection; bipolar modulation; code-division multiple-access (CDMA); multiple-access interference (MAI); optical communications;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2004.840829
