External feedback optimization by means of polarization control in fiber Bragg grating stabilized 980-nm pump lasers

Author

Pliska, Tomas ; Matuschek, Nicolai ; Mohrdiek, Stefan ; Hardy, Amos ; Harder, Christoph

Author_Institution

Nortel Networks Opt. Components AG, Zurich, Switzerland

Volume

13

Issue

10

fYear

2001

Firstpage

1061

Lastpage

1063

Abstract

Effects of polarization change in the feedback provided by fiber Bragg gratings that stabilize 980-nm pump lasers are investigated. The effective feedback in the proper transverse-electric polarization is calculated from an easily measured parameter, describing the polarization at the fiber grating. This provides a useful experimental tool to investigate the effect of feedback loss due to polarization change that can occur in nonpolarization maintaining fibers. On the basis of our calculations, we give guidelines for optimum fiber layout to minimize polarization change.

Keywords

Bragg gratings; laser feedback; laser transitions; light polarisation; optical fibre communication; optical losses; optical pumping; optimisation; semiconductor lasers; 980 nm; external feedback optimization; feedback loss; fiber Bragg grating stabilized pump lasers; fiber grating polarisation; nonpolarization maintaining fibers; optimum fiber layout; polarization change; polarization control; transverse-electric polarization; Bragg gratings; Erbium-doped fiber lasers; Fiber gratings; Laser excitation; Laser feedback; Laser stability; Laser transitions; Optical fiber polarization; Pump lasers; Semiconductor lasers;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.950735

Filename

950735