Single-Longitudinal-Mode Brillouin/Erbium Fiber Laser With High Linewidth-Reduction Ratio

Author

Bowen Li ; Xiaoming Wei ; Xie Wang ; Wong, Kenneth Kin-Yip

Author_Institution

Dept. of Electr. & Electron. Eng., Univ. of Hong Kong, Hong Kong, China

Volume

26

Issue

23

fYear

2014

fDate

Dec.1, 1 2014

Firstpage

2387

Lastpage

2390

Abstract

Saturable-absorber-based autotracking filter is incorporated for the first time in hybrid Brillouin/erbium fiber laser to achieve a single-longitudinal-mode operation. We experimentally demonstrate a linewidth-reduction ratio of 166 with a 150-m Brillouin gain media. At the same time, with the intracavity erbium-doped fiber amplifier (EDFA) to compensate the loss introduced by the mode-selection elements, Brillouin pump threshold is as low as 3 mW under 120 mW of 980-nm pump power and the maximum output power is 7 mW. Moreover, the autotracking filter also helps to suppress self-lasing and enables tuning range over the entire C-band.

Keywords

erbium; laser beams; laser modes; laser tuning; optical fibre amplifiers; optical fibre filters; optical fibre losses; optical pumping; optical saturable absorption; stimulated Brillouin scattering; Brillouin gain media; Brillouin pump threshold; C-band; EDFA; high linewidth-reduction ratio; hybrid Brillouin/erbium fiber laser; intracavity erbium-doped fiber amplifier; loss; maximum output power; mode-selection element; power 12 mW; power 3 mW; power 7 mW; pump power; saturable-absorber-based autotracking filter; self-lasing; single-longitudinal-mode Brillouin/erbium fiber laser; single-longitudinal-mode operation; size 150 m; tuning range; wavelength 980 nm; Cavity resonators; Erbium-doped fiber lasers; Laser excitation; Laser modes; Media; Pump lasers; Scattering; Brillouin lasers; Nonlinear fiber optics; linewidth reduction; optical fiber lasers;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2014.2357831

Filename

6898838