Analysis of multiple wavelength DFB fiber lasers

Author

Løvseth, Sigurd Weidemann ; Stepanov, Dmitrii Yu

Author_Institution

Dept. of Phys. Electron., Norwegian Univ. of Sci. & Technol., Trondheim, Norway

Volume

37

Issue

6

fYear

2001

fDate

6/1/2001 12:00:00 AM

Firstpage

770

Lastpage

780

Abstract

The behavior of multiwavelength distributed feedback fiber lasers is simulated in a comprehensive numerical model. Multiple fundamental modes can coexist, even though the coupling coefficients of their respective refractive index gratings are not equal, due to induced dynamic gain gratings. We have investigated the effect on the lasing state of variations in coupling strengths, gain parameters, grating Bragg frequency separation, relative phase between the gratings, length of the structure relative to the beat lengths between the gratings, grating center phase-shift errors, and saturation level of the UV-induced refractive index change

Keywords

distributed feedback lasers; fibre lasers; laser modes; laser theory; optical saturation; UV-induced refractive index change; comprehensive numerical model; coupling coefficients; fundamental modes; gain parameters; grating Bragg frequency separation; grating center phase-shift errors; induced dynamic gain gratings; multiple wavelength DFB fiber lasers; multiwavelength distributed feedback fiber lasers; refractive index gratings; saturation level; Bragg gratings; Distributed feedback devices; Erbium-doped fiber lasers; Fiber gratings; Fiber lasers; Frequency; Laser feedback; Laser modes; Optical fiber polarization; Optical fibers;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/3.922774

Filename

922774