Title :
Fiber four-wave mixing demultiplexing with inherent parametric amplification
Author :
Hedekvist, Per Olof ; Karlsson, Magnus ; Andrekson, Peter A.
Author_Institution :
Dept. of Optoelectron. & Electr. Meas., Chalmers Univ. of Technol., Goteborg, Sweden
fDate :
11/1/1997 12:00:00 AM
Abstract :
We present an all-optical time-division demultiplexer with 22 dB conversion efficiency, using four-wave mixing (FWM) at 1550 nm in a single-mode dispersion-shifted fiber. Error-free demultiplexing of 20 Gb/s data to 10 Gb/s is obtained, with 1.4 dB power penalty at BER=10 -9. We also derive theoretical expressions for the conversion efficiency, the maximum bit rate that is possible to demur and the shape of the switching window. In particular we emphasize the importance of phase-matching in order to achieve a flat switching window. Furthermore the pump must remain undepleted to avoid a detrimental reduction of the extinction ratio due to instantaneous parametric gain saturation
Keywords :
demultiplexing; demultiplexing equipment; multiwave mixing; optical fibre communication; optical fibre dispersion; optical parametric amplifiers; optical pumping; optical saturation; time division multiplexing; 10 Gbit/s; 1550 nm; 20 Gbit/s; all-optical time-division demultiplexer; conversion efficiency; error-free demultiplexing; extinction ratio; fiber four-wave mixing demultiplexing; flat switching window; inherent parametric amplification; instantaneous parametric gain saturation; maximum bit rate; optical fibre communication; optical fibre switches; optical saturation; phase-matching; power penalty; single-mode dispersion-shifted fiber; switching window; theoretical expressions; undepleted pump; Demultiplexing; Fiber nonlinear optics; Four-wave mixing; High speed optical techniques; Optical fiber polarization; Optical mixing; Optical pumping; Optical saturation; Optical sensors; Optical solitons;
Journal_Title :
Lightwave Technology, Journal of
