Numerical analysis of multifrequency erbium-doped fibre ring laser employing periodic filter and frequency shifter

Author

Karasek, M. ; Bellemare, A.

Author_Institution

Dept. of Electr. & Comput. Eng., Laval Univ., Que., Canada

Volume

147

Issue

2

fYear

2000

fDate

4/1/2000 12:00:00 AM

Firstpage

115

Lastpage

119

Abstract

Numerical analysis of a recently proposed multifrequency erbium-doped ring laser employing a frequency periodic filter and frequency shifter is presented. The model is based on a homogeneously broadened three-level approximation of an erbium ion. The multifrequency operation is achieved by shifting the frequency of the amplified spontaneous emission (ASE) power circulating in the ring cavity by one wavelength slot each circulation period to prevent steady-state single-frequency laser operation. The effect of cavity loss, erbium-doped fibre (EDF) gain, direction of ASE circulation on lasing spectrum uniformity and output power is investigated

Keywords

erbium; fibre lasers; laser cavity resonators; laser theory; optical fibre losses; ring lasers; superradiance; ASE circulation; Er-doped cavity loss fibre gain; amplified spontaneous emission power circulation; erbium ion; frequency shifter; homogeneously broadened three-level approximation; lasing spectrum uniformity; multifrequency erbium-doped fibre ring laser; multifrequency operation; numerical analysis; output power; periodic filter; steady-state single-frequency laser operation; wavelength;

fLanguage

English

Journal_Title

Optoelectronics, IEE Proceedings -

Publisher

iet

ISSN

1350-2433

Type

jour

DOI

10.1049/ip-opt:20000286

Filename

844446