Polarization optical bistability induced by TM mode injection to a DFB laser with complex coupled coefficient

Author

Shi, Chao-Xiang

Author_Institution

Hitachi Cable Ltd., Ibaraki, Japan

Volume

14

Issue

4

fYear

1996

fDate

4/1/1996 12:00:00 AM

Firstpage

616

Lastpage

621

Abstract

A novel method is proposed to produce an optical bistability by using a dynamically stable complex coupled DFB (CC-DFB) laser with TM mode injection. In this paper polarization optical bistabilities are analyzed in detail using coupled mode equations and rate equations for the CC-DFB lasers considering the longitudinal hole burning and carrier dependent complex coupling coefficients. Several parameters reflecting the physical features of a complex coupled DFB laser are discussed. It is shown that for a CC-DFB laser the polarization bistability induced by the TM mode injection is much stronger for the antiphase of complex coupling than that for the in-phase. In addition, the influences of initial coupling condition for gain grating structure on the optical bistability are also investigated considering both cases of the antiphase and in-phase

Keywords

diffraction gratings; distributed feedback lasers; laser modes; laser theory; light polarisation; optical bistability; optical couplers; optical hole burning; semiconductor lasers; DFB laser; TM mode injection; antiphase; carrier dependent complex coupling coefficients; complex coupled coefficient; coupled mode equations; dynamically stable complex coupled DFB laser; gain grating structure; in-phase; longitudinal hole burning; physical features; polarization optical bistabilities; polarization optical bistability; rate equations; Equations; Laser modes; Laser stability; Laser theory; Optical bistability; Optical coupling; Optical filters; Optical polarization; Semiconductor lasers; Semiconductor optical amplifiers;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.491400

Filename

491400