Title :
Optical subcarrier-multiplexing for output-port contention resolution
Author :
Adamczyk, O.H. ; Havstad, S.A. ; Sahin, A.B. ; Cardakli, M.C. ; Lee, S. ; Willner, A.E.
Author_Institution :
Dept. of Electr. Eng., Univ. of Southern California, Los Angeles, CA, USA
Abstract :
We demonstrate an all-optical contention resolution technique that combines two identical-wavelength contending 2.5 Gbit/s channels into the same output-port wavelength channel. This is achieved by optically up-converting one channel to a higher microwave frequency beyond the other channel´s baseband signal and routing both channels out the desired output-port wavelength channel simultaneously. By using narrow (/spl sim/5 GHz) fiber Fabry-Perot filters for optically demultiplexing the two channels, we recover each channel using a baseband receiver with <1 dB power penalty.
Keywords :
demultiplexing; optical fibre filters; optical modulation; optical receivers; subcarrier multiplexing; telecommunication channels; wavelength division multiplexing; 2.5 Gbit/s; all-optical contention resolution technique; baseband receiver; baseband signal; identical-wavelength contending Gbit/s channels; microwave frequency; narrow fiber Fabry-Perot filters; optical subcarrier-multiplexing; optically demultiplexing; optically up-converting; output-port contention resolution; output-port wavelength channel; power penalty; routing; Baseband; Demultiplexing; Fabry-Perot; Microwave filters; Microwave frequencies; Optical fiber filters; Optical filters; Optical receivers; Signal resolution; Wavelength routing;
Journal_Title :
Photonics Technology Letters, IEEE
