Title :
An all-fiber resonator composed of single-channel side-coupled microresonator sequence
Author :
Shen, Xiaowei ; Li, Xinwan ; Hong, Zehua ; Shen, Jianguo ; Yu, Xiaocao ; Zhou, Minwen ; Chen, Jianping
Author_Institution :
State Key Lab. of Adv. Opt. Commun. Syst. & Networks, Shanghai Jiao Tong Univ., Shanghai, China
Abstract :
An all-fiber resonator composed of single-channel side-coupled microresonator sequence is proposed, in which a sequence of optical fibers, serve as microresonator, and a subwavelength-diameter optical fiber(SDF) with diameter about 1µm is placed along the microresonator perimeter, coupling light into whispering-gallery-modes(WGMs) of the microresonator. The transmission property and dispersion relation are analyzed by transfer matrix method. Infinite sequence structure show band gaps created by Bragg and ring resonances. Finite sequence structure shows a quality factor (Q factor) of 2, 500, a free spectral range (FSR) of 4.7nm and extinction ratio of 5.9dB (one resonator), 6.2dB (two resonator sequence) and 7.8dB (three resonator sequence), respectively. The proposed resonator can be tuned by changing refractive index of microresonator. This device is easy to fabricate and to connect to fiber system.
Keywords :
Dispersion; Microcavities; Optical coupling; Optical fibers; Optical refraction; Optical resonators; Optical variables control; Photonic band gap; Q factor; Resonance;
Conference_Titel :
Wireless and Optical Communications Conference (WOCC), 2010 19th Annual
Conference_Location :
Shanghai, China
Print_ISBN :
978-1-4244-7597-1
DOI :
10.1109/WOCC.2010.5510685
