Title :
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
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;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2014.2324618
