Title :
Spectrally efficient optical CDMA using coherent phase-frequency coding
Author :
Etemad, Shahab ; Toliver, Paul ; Menendez, Ron ; Young, Jeff ; Banwell, Tom ; Galli, Stefano ; Jackel, Janet ; Delfyett, Peter ; Price, Craig ; Turpin, Terry
Author_Institution :
Telcordia Technol., USA
fDate :
4/1/2005 12:00:00 AM
Abstract :
We demonstrate feasibility of a spectrally efficient wavelength-division-multiplexing-compatible optical code-division multiple-access system using 16 phase-locked laser lines within an 80-GHz tunable window as frequency bins and an ultrahigh frequency resolution spectral phase encoder-decoder. Coding and decoding using binary [0, π] phase chips were demonstrated for four users at 2.5 Gb/s, and a single coded signal was separated from four copropagating signals, with bit-error rate <10-9.
Keywords :
code division multiple access; error statistics; optical fibre communication; optical phase locked loops; phase coding; wavelength division multiplexing; 2.5 Gbit/s; 80 GHz; binary phase chips; bit-error rate; coherent phase-frequency coding; optical CDMA; optical code division multiple access; phase-locked laser lines; spectral phase encoder-decoder; wavelength division multiplexing; Decoding; Frequency; Laser mode locking; Multiaccess communication; Optical fiber networks; Optical filters; Optical pulse generation; Optical pulses; Tunable circuits and devices; Wavelength division multiplexing; Code-division multiple-access (CDMA); code-division multiplexing; optical code-division multiple-access (OCDMA); optical communications; wavelength-division multiplexing (WDM);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2005.843692
