Coherent subcarrier fiber-optic communication systems with phase-noise cancellation

Author

Kwong, Wing C. ; Prucnal, Paul R. ; Teich

Author_Institution

Dept. of Electr. Eng., Hofstra Univ., Hempstead, NY

Volume

42

Issue

6

fYear

1994

fDate

6/1/1994 12:00:00 AM

Firstpage

2208

Lastpage

2212

Abstract

A phase-noise-cancelled coherent subcarrier fiber-optic communication system that uses integrated-optic Mach-Zehnder waveguide modulators for frequency-pair encoding is introduced. Optical double-sideband suppressed-carrier signals with the same random phase noise and information encoded in the frequency separation of the two sidebands are generated by properly biasing the modulator. Phase noise is eliminated at the receiver by a nonlinear operation on the two sidebands. System performance analysis with numerical examples, taking into account the modulation index and laser normalized linewidth, is presented

Keywords

encoding; integrated optics; light coherence; modulators; optical links; optical modulation; Mach-Zehnder waveguide modulators; coherent subcarrier fiber-optic communication; double-sideband suppressed-carrier signals; frequency separation; frequency-pair encoding; integrated-optics; laser normalized linewidth; modulation index; nonlinear operation; optical signals; phase-noise cancellation; random phase noise; receiver; system performance analysis; Encoding; Fiber nonlinear optics; Frequency modulation; Nonlinear optics; Optical fiber communication; Optical modulation; Optical receivers; Optical waveguides; Phase modulation; Phase noise;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/26.293667

Filename

293667