Stable single-mode compound-ring erbium-doped fiber laser

Author

Zhang, Jianluo ; Yue, Chao-Yu ; Schinn, Gregory W. ; Clements, Wallace R L ; Lit, John W.Y.

Author_Institution

Dept. of Phys., Waterloo Univ., Ont., Canada

Volume

14

Issue

1

fYear

1996

fDate

1/1/1996 12:00:00 AM

Firstpage

104

Lastpage

109

Abstract

In this paper we report the fabrication of a robust, tunable single-longitudinal-mode compound-ring Er³⁺-doped fiber laser. The laser is fundamentally structured on an all-fiber compound-ring resonator in which a dual-coupler fiber ring is inserted into the main cavity. When combined in tandem with a mode-restricting intracavity tunable bandpass filter, the compound-ring resonator ensures single-longitudinal-mode laser oscillation. The laser can provide up to 20 mW output power over much of its 1525 to 1570 nm wavelength tuning range. The short-term linewidth of the laser output measured is less than 5 kHz. The laser frequency is actively stabilized for a long time by exploiting the inherent filter nature of the compound-ring resonator. The reduction of an associated frequency modulation is also discussed in detail

Keywords

erbium; fibre lasers; frequency modulation; laser cavity resonators; laser frequency stability; laser tuning; optical fibre couplers; optical fibre fabrication; optical filters; optical modulation; ring lasers; spectral line breadth; 1525 to 1570 nm; 20 mW; all-fiber compound-ring resonator; compound-ring resonator; dual-coupler fiber ring; frequency modulation; inherent filter nature; laser output; main cavity; mode-restricting intracavity tunable bandpass filter; output power; robust tunable single-longitudinal-mode compound-ring Er³⁺-doped fiber laser; short-term linewidth; single-longitudinal-mode compound-ring Er³⁺-doped fiber laser; single-longitudinal-mode laser oscillation; stable single-mode compound-ring erbium-doped fiber laser; wavelength tuning range; Band pass filters; Erbium; Erbium-doped fiber lasers; Laser modes; Laser stability; Laser tuning; Optical device fabrication; Ring lasers; Robustness; Tunable circuits and devices;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.476143

Filename

476143