L-Band Multiwavelength Single-Longitudinal Mode Fiber Laser for Sensing Applications

Author

Perez-Herrera, R.A. ; Ullan, A. ; Leandro, D. ; Fernandez-Vallejo, M. ; Quintela, M.A. ; Loayssa, A. ; Lopez-Higuera, J.M. ; Lopez-Amo, M.

Author_Institution

Dept. of Electr. & Electron. Eng., Univ. Publica de Navarra, Pamplona, Spain

Volume

30

Issue

8

fYear

2012

fDate

4/15/2012 12:00:00 AM

Firstpage

1173

Lastpage

1177

Abstract

In this work, a novel single-longitudinal-mode (SLM) four-wavelength laser configuration for sensing applications in the L-band is proposed and experimentally demonstrated. The sensor system presented here is based on ring resonators, and employs fiber Bragg gratings to select the operation wavelengths. The stable SLM operation is guaranteed when all the lasing channels present similar output powers. It is also experimentally demonstrated that when a SLM behavior is achieved, lower output power fluctuations are obtained. Characterization of the lasing structure for temperature sensing is also shown.

Keywords

Bragg gratings; fibre lasers; fibre optic sensors; laser cavity resonators; laser modes; temperature sensors; L-band; fiber Bragg gratings; lasing channels; ring resonators; sensing applications; single-longitudinal mode fiber laser; temperature sensing; Erbium-doped fiber lasers; Laser modes; Optical fiber amplifiers; Optical fiber networks; Optical fiber sensors; Erbium-doped fiber (EDF); fiber Bragg grating (FBG); multiwavelength laser; optical fiber amplifier; optical fiber ring laser; single-longitudinal mode (SLM);

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2011.2174138

Filename

6062627