Title :
A Novel Method of Inducing Phase Shifts in Fiber Bragg Grating without Using Phase Mask
Author :
Wang Hongbo ; Pu Tao ; Sun Guodan ; Lu Lin ; Fang Tao
Author_Institution :
Inst. of Commun. Eng. PLA, Univ. of Sci. & Technol., Nanjing, China
Abstract :
A method of inducing phase shifts in Fiber Bragg Grating (FBG) by increasing Dc refractive index of the FBG is presented and experimentally verified. Only submicrometer-precision in control is enough and the phase mask in not necessarily needed in fabrication. The proposed method is markedly advantageous in cost-effectiveness, flexibility and simplicity compared to traditional ways in fabrication and mass production particularly in applications like optical code-division multiple-access (OCDMA) en/decoder ,optical filter in which complex multi-phase shifts are needed.
Keywords :
Bragg gratings; code division multiplexing; codecs; optical communication equipment; optical fibre communication; optical fibre fabrication; optical fibre filters; optical phase shifters; refractive index; ,optical filter; Dc refractive index; FBG; OCDMA coders; fiber Bragg grating; multiphase shifts; optical code-division multiple-access decoder; optical code-division multiple-access encoder; optical fabrication; phase mask; Distributed feedback devices; Fiber gratings; Optical fiber sensors; Optical fibers; Optical filters; Refractive index;
Conference_Titel :
Photonics and Optoelectronics (SOPO), 2011 Symposium on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-6555-2
DOI :
10.1109/SOPO.2011.5780491
