Title :
Fiber grating Sagnac loop and its multiwavelength-laser application
Author :
Shu, Xuewen ; Jiang, Shan ; Huang, Dexiu
Author_Institution :
Dept. of Optoelectron., Huazhong Univ. of Sci. & Technol., Wuhan, China
Abstract :
We introduce a novel simple comb filter, which is based on a Sagnac interferometer with a fiber Bragg grating asymmetrically located in its fiber loop. The filter has advantages of simple design and easy fabrication, low insertion loss and low cost. Two filters with triple bandpasses and dual bandpasses, respectively, were fabricated and applied to an erbium-doped fiber ring laser. Stable triple-wavelength and dual-wavelength laser operations have been demonstrated.
Keywords :
Bragg gratings; band-pass filters; erbium; fibre lasers; fibre optic sensors; laser accessories; laser beams; light interferometers; optical fibre fabrication; optical fibre filters; optical fibre losses; ring lasers; Er-doped fiber ring laser; Sagnac interferometer; comb filter; cost; design; dual bandpass filter; dual-wavelength laser operations; fabrication; fiber Bragg grating; fiber grating Sagnac loop; fiber loop; insertion loss; multiwavelength-laser application; stable triple-wavelength; triple bandpass filter; Bragg gratings; Couplings; Erbium-doped fiber lasers; Fiber gratings; Filters; Optical fiber communication; Optical fiber couplers; Optical fibers; Ring lasers; Sagnac interferometers;
Journal_Title :
Photonics Technology Letters, IEEE
