Title :
Sensitivity of optically preamplified DPSK receivers with Fabry-Perot filters
Author :
Chinn, Stephen R. ; Boroson, Don M. ; Livas, Jeff C.
Author_Institution :
Lincoln Lab., MIT, Lexington, MA, USA
fDate :
3/1/1996 12:00:00 AM
Abstract :
The error-rate performance of a DPSK lightwave receiver having an optical amplifier followed by a Fabry-Perot filter and delay-line demodulator is analyzed. Receivers with sampling and with integrate-and-dump threshold comparison are compared to the well-known result for a matched optical filter. The Fabry-Perot filter decreases the sensitivity at 10-9 error-rate from 20 to 24.5 photons/b with optimum optical filter bandwidth and postdetection integration time
Keywords :
Fabry-Perot resonators; differential phase shift keying; errors; optical filters; optical receivers; sensitivity; Fabry-Perot filters; delay-line demodulator; error-rate performance; integrate-and-dump threshold comparison; matched optical filter; optical amplifier; optically preamplified DPSK receiver sensitivity; optimum optical filter bandwidth; postdetection integration time; Delay; Demodulation; Differential quadrature phase shift keying; Fabry-Perot; Optical amplifiers; Optical filters; Optical receivers; Optical sensors; Semiconductor optical amplifiers; Stimulated emission;
Journal_Title :
Lightwave Technology, Journal of
