Title :
Multichannel image-rejection coherent detection system
Author :
Lachs, Gerard ; Henning, Rudolf E. ; Choi, Youngkyun ; Zaidi, Syed Mohammad
Author_Institution :
Dept. of Electr. Eng., Univ. of South Florida, Tampa, FL, USA
fDate :
12/1/1990 12:00:00 AM
Abstract :
An analysis is made of and data is presented from a prototype of an image channel rejection systems for the coherent detection of densely packed wavelength division multiplexed (WDM) channels. The system can simultaneously process a number of channels with a single-local laser diode and can extract the feedback control signals required to adjust critical system parameters. Although the system operates most simply for frequency shift keying (FSK) and phase-shift keying (PSK), it also operates for all the usual modulation schemes with minor adjustments. The control system aspects of the system are not affected by laser-diode phase noise
Keywords :
frequency division multiplexing; frequency shift keying; light coherence; optical communication equipment; optical modulation; phase shift keying; photodetectors; photodiodes; FSK; PSK; WDM channel detection; coherent detection system; control system aspects; densely packed wavelength division multiplexed; feedback control signals; frequency shift keying; image channel rejection systems; laser-diode phase noise; multichannel detection system; phase-shift keying; photodiode detectors; single-local laser diode; Data mining; Diode lasers; Feedback control; Frequency shift keying; Image analysis; Phase modulation; Phase shift keying; Prototypes; Signal processing; Wavelength division multiplexing;
Journal_Title :
Lightwave Technology, Journal of
