Demonstration of Multiwavelength Erbium-Doped Fiber Laser Based on a Microfiber Knot Resonator

Author

Meng Liu ; Hao Liu ; Xu-Wu Zheng ; Nian Zhao ; Ai-Ping Luo ; Zhi-Chao Luo ; Wen-Cheng Xu

Author_Institution

Lab. of Nanophotonic Functional Mater. & Devices, South China Normal Univ., Guangzhou, China

Volume

26

Issue

14

fYear

2014

fDate

15-Jul-14

Firstpage

1387

Lastpage

1390

Abstract

We proposed and demonstrated a stable multiwavelength erbium-doped fiber laser by using a microfiber knot resonator (MKR)-based comb filter. By properly rotating the polarization controller, up to 11 lasing lines in a 3-dB bandwidth with 0.184-nm channel spacing were obtained. In addition, the lasing locations can be flexibly tuned by virtue of spectral filtering effect induced by the polarization-dependent isolator and the intracavity birefringence. The results demonstrated that the MKR could be employed as a high performance comb filter to realize a compact multiwavelength fiber laser.

Keywords

birefringence; comb filters; erbium; fibre lasers; laser cavity resonators; laser stability; laser tuning; micro-optics; optical fibre filters; optical fibre polarisation; channel spacing; compact multiwavelength fiber laser; intracavity birefringence; lasing lines; microfiber knot resonator-based comb filter; polarization controller; polarization-dependent isolator; spectral filtering effect; stable multiwavelength erbium-doped fiber laser; Erbium-doped fiber lasers; Optical fiber communication; Optical fiber devices; Optical fiber polarization; Optical resonators; Fiber lasers; comb filters; microfiber knot resonator; multiwavelength;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2014.2324618

Filename

6817556