Signal processing in an optical polarization diversity receiver for 560-Mbit/s ASK heterodyne detection

Author

Enning, B. ; Vodhanel, R.S. ; Dietrich, E. ; Patzak, E. ; Meissner, P. ; Wenke, G.

Author_Institution

Heinrich-Hertz-Inst. fuer Nachrichtentechnik, Berlin, West Germany

Volume

7

Issue

3

fYear

1989

fDate

3/1/1989 12:00:00 AM

Firstpage

459

Lastpage

464

Abstract

Polarization diversity is an alternative technique for coherent receivers to prevent loss to signal due to variations in the states of polarization (SOP) of the received signal field. It is shown experimentally and theoretically that there is no significant power penalty difference between a receiver with optimally adjusted gains and receivers with linear envelope detection and square-law detection. Experimentally, two amplitude-shift keying (ASK) heterodyne polarization diversity receivers with envelope detectors were demonstrated at 560 Mb/s, one using linear rectifiers, the other using square-law rectifiers. In both cases, the receiver sensitivity of -35 dBm at BER=10/sup -9/ was degraded by less than 1 dB as the received signal SOP was varied, in agreement with theory.<>

Keywords

amplitude modulation; light polarisation; optical communication equipment; optical information processing; receivers; 560 Mbit/s; ASK heterodyne detection; linear envelope detection; optical polarization diversity receiver; polarisation states; receiver sensitivity; signal processing; square-law detection; Amplitude shift keying; Degradation; Envelope detectors; Optical losses; Optical mixing; Optical polarization; Optical receivers; Optical sensors; Optical signal processing; Rectifiers;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.16881

Filename

16881