Laser mode partition noise in lightwave systems using dispersive optical fiber

Author

Wentworth, Robert H. ; Bodeep, George E. ; Darcie, Thomas E.

Author_Institution

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

Volume

10

Issue

1

fYear

1992

fDate

1/1/1992 12:00:00 AM

Firstpage

84

Lastpage

89

Abstract

Semiconductor laser mode partition noise (LMPN) can impair analog optical systems, but this phenomenon has not previously been well-characterized. Theoretical expressions for the noise spectra that result when light from a nearly single-mode or strongly multimode semiconductor laser is passed through a length of dispersive optical fiber are presented and have been tested experimentally. A widely used model is found to greatly overestimate the partition noise of a DFB laser; a model for the strongly multimode case is found to match experimental results for a multimode laser. It is observed that partition noise can be significant even for multimode lasers operating near the fiber dispersion minimum

Keywords

distributed feedback lasers; electron device noise; optical communication equipment; optical dispersion; optical links; optical waveguide theory; semiconductor junction lasers; DFB laser; analog optical systems; dispersive optical fiber; distributed feedback; fiber dispersion minimum; laser mode partition noise; lightwave systems; nearly single-mode; noise spectra; semiconductor diode lasers; strongly multimode; Dispersion; Fiber lasers; Laser modes; Laser noise; Laser theory; Optical fiber testing; Optical fibers; Optical noise; Semiconductor device noise; Semiconductor lasers;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.108741

Filename

108741