Narrow linewidth operation of an erbium fiber laser containing a chirped Bragg grating etalon

Author

Forster, R.J. ; Langford, N. ; Gloag, A. ; Zhang, L. ; Williams, J.A.R. ; Bennion, I.

Author_Institution

Dept. of Phys. & Appl. Phys., Strathclyde Univ., Glasgow, UK

Volume

15

Issue

11

fYear

1997

fDate

11/1/1997 12:00:00 AM

Firstpage

2130

Lastpage

2136

Abstract

A numerical model is presented which shows that a control signal suitable for preventing longitudinal mode hops can be derived by sensing changes in the polarization state of the light reflected from an intracavity etalon. This is verified experimentally by including a continuous fiber etalon formed from chirped Bragg reflectors in a unidirectional erbium ring fiber laser. Mode hop free operation is observed with resolution limited linewidths of 170 kHz

Keywords

chirp modulation; diffraction gratings; erbium; fibre lasers; frequency control; laser cavity resonators; laser modes; laser theory; light interferometers; optical fibre polarisation; optical variables control; ring lasers; spectral line breadth; chirped Bragg grating etalon; chirped Bragg reflectors; continuous fiber etalon; control signal; erbium fiber laser; intracavity etalon; longitudinal mode hops; narrow linewidth operation; numerical model; polarization state; resolution limited linewidths; unidirectional Er ring fiber laser; Bragg gratings; Chirp; Erbium; Erbium-doped fiber lasers; Fiber gratings; Frequency; Laser mode locking; Laser modes; Optical fiber polarization; Ring lasers;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.641533

Filename

641533