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Accession number: 20133516678837
Title: Design and experimental study of two-wavelength single-longitudinal-mode
erbium-doped fiber ring laser
Authors: Jiao, Mingxing1 ; Xing, Junhong1 ; Tong, Congwei1 ; Liu, Yun1/焦明星;邢俊红;同聪维;
刘芸
Author affiliation: 1 Department of Precision Instruments, School of Mechanical and
Instrumental Engineering, Xi'an University of Technology, Xi'an, Shaanxi 710048, China
Corresponding author: Jiao, M. ([e-mail])
Source title: Zhongguo Jiguang/Chinese Journal of Lasers
Abbreviated source title: Zhongguo Jiguang
Volume: 40
Issue: 6
Issue date: June 2013
Publication year: 2013
Article number: 0602013
Language: Chinese
ISSN: 02587025
CODEN: ZHJIDO
Document type: Journal article (JA)
Publisher: Science Press, 18,Shuangqing Street,Haidian, Beijing, 100085, China
Abstract: In order to produce the orthogonally and linearly polarized dual-frequency laser
output at 1550 nm, a two-wavelength single-longitudinal-mode erbium-doped fiber (EDF) laser
with a structure of compound ring cavity is designed, which employs a polarization-maintaining
fiber Bragg grating as the wavelength selector, and uses a saturable absorber of an unpumped
EDF as laser single-longitudinal-mode selector. The basic principles of single longitudinal-mode
selection of both compound ring cavity and unpumped EDF saturable absorber have been briefly
introduced, the effect of the unpumped EDF length on the single-longitudinal-mode selection is
theoretically analyzed, and the two-wavelength laser oscillating characteristics are investigated
experimentally on different longitudinal-mode selection occasions. The experimental results
show that the EDF laser with a compound ring cavity in which both a polarization-maintaining
fiber Bragg grating and an unpumped EDF saturable absorber are included can steadily output
orthogonally and linearly polarized two-wavelength single-longitudinal-mode laser at 1550 nm,
and the wavelength spacing is approximately 0.344 nm. Such a two-wavelength
single-longitudinal-mode fiber laser will find wide applications in the fields of laser sensing and
measuring system, dense wavelength division multiplexing (DWDM) optical fiber communications,
and so on.
Number of references: 14
Main heading: Dense wavelength division multiplexing
Controlled terms: Fiber Bragg gratings - Fiber lasers - Fibers - Lasers - Light
polarization - Polarization - Polarization-maintaining fiber - Ring lasers - Saturable
absorbers - Wavelength
Uncontrolled terms: Dual-frequency lasers - Erbium doped fiber laser - Erbium doped
fiber ring lasers - Erbium doped fibers - Linearly polarized - Ring cavities - Single
longitudinal mode - Two-wavelength lasers