Dual-Wavelength DFB Fiber Laser Based on a Chirped Structure and the Equivalent Phase Shift Method

Author

Dai, Yitang ; Chen, Xiangfei ; Sun, Jie ; Yao, Yu ; Xie, Shizhong

Author_Institution

Dept. of Electr. Eng., Tsinghua Univ., Beijing

Volume

18

Issue

18

fYear

2006

Firstpage

1964

Lastpage

1966

Abstract

A chirped phase-shifted structure is demonstrated for compact multiwavelength distributed feedback (DFB) fiber laser at room temperature for the first time. The chirped structure provides separated resonance cavities and then the stable multiwavelength operation. The equivalent phase shift method is demonstrated to realize the desired chirp and phase shifts simply and flexibly. A 44-pm-spaced dual-wavelength DFB fiber laser is then achieved experimentally, which is the narrowest spacing ever reported for a compact multiwavelength fiber laser

Keywords

chirp modulation; distributed feedback lasers; fibre lasers; laser cavity resonators; laser stability; chirped phase shift method; dual-wavelength DFB fiber laser; resonance cavities; spacing; Bragg gratings; Chirp; Distributed feedback devices; Erbium-doped fiber lasers; Fiber gratings; Fiber lasers; Laser feedback; Masers; Optical fiber communication; Optical resonators; Distributed feedback (DFB); dual-wavelength fiber laser; fiber lasers;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2006.882282

Filename

1687957