Distortion related to polarization-mode dispersion in analog lightwave systems

Author

Poole, C.D. ; Darcie, T.E.

Author_Institution

AT&T Bell Labs., Holmdel, NJ, USA

Volume

11

Issue

11

fYear

1993

fDate

11/1/1993 12:00:00 AM

Firstpage

1749

Lastpage

1759

Abstract

Analog transmission in single-mode fiber using chirped sources gives rise to nonlinear distortion when polarization-mode dispersion (PMD) is present. We investigate experimentally and theoretically two mechanisms for this distortion: for chirped sources, PMD in the presence of polarization-mode coupling results in second-order distortion that is proportional to the square of the modulation frequency; when polarization-dependent loss is present, an additional second-order distortion term occurs that is independent of modulation frequency. Both mechanisms give rise to distortion that is time varying due to the sensitivity of PMD to ambient temperature changes. Numerical examples indicate that these effects can limit the capacity of analog systems that use directly modulated semiconductor lasers

Keywords

cable television; light polarisation; optical dispersion; optical links; optical modulation; CATV; additional second-order distortion term; ambient temperature changes; analog lightwave systems; analog system capacity; analog transmission; chirped sources; directly modulated semiconductor lasers; distortion; modulation frequency; nonlinear distortion; polarization-dependent loss; polarization-mode dispersion; second-order distortion; sensitivity; single-mode fiber; Chirp; Frequency modulation; Laser modes; Laser noise; Nonlinear distortion; Optical distortion; Optical fiber polarization; Optical modulation; Optical waveguides; Polarization mode dispersion;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.251171

Filename

251171