Single-Longitudinal-Mode Dual Wavelength-Switchable Fiber Laser Based on Superposed Fiber Bragg Gratings

Author

Perez-Herrera, R.A. ; Rodriguez-Cobo, L. ; Quintela, M.A. ; Lopez Higuera, J.M. ; Lopez-Amo, M.

Author_Institution

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

Volume

7

Issue

2

fYear

2015

fDate

Apr-15

Firstpage

1

Lastpage

7

Abstract

In this work, a simple switchable dual-wavelength short-cavity fiber laser operating in a single-longitudinal-mode regime at room temperature and based on superposed fiber Bragg gratings is proposed and experimentally demonstrated. Only by introducing stress into one of the overwritten FBGs, single- or dual-wavelength laser oscillations can be attained. Either single- or multimode operation of the laser can be easily achieved. Single-longitudinal-mode emission has been verified in two different ways: the first corroboration has been conducted by the heterodyne detection of the output signal, and the second one has been carried out by using a high-resolution optical spectrum analyzer.

Keywords

Bragg gratings; fibre lasers; laser cavity resonators; laser modes; optical switches; oscillations; dual-wavelength laser oscillations; heterodyne detection; high-resolution optical spectrum analyzer; output signal; single-longitudinal-mode dual wavelength-switchable fiber laser; single-longitudinal-mode emission; single-wavelength laser oscillations; superposed fiber Bragg gratings; temperature 293 K to 298 K; Cavity resonators; Erbium-doped fiber lasers; Fiber gratings; Measurement by laser beam; Optical fibers; Optical variables measurement; Cavity laser; dual overwritten grating; erbium doped fiber; erbium-doped fiber; single-longitudinal mode; superposed fiber Bragg gratings;

fLanguage

English

Journal_Title

Photonics Journal, IEEE

Publisher

ieee

ISSN

1943-0655

Type

jour

DOI

10.1109/JPHOT.2015.2419077

Filename

7076605