Integrated in-fiber coupler for microsphere whispering-gallery modes resonator excitation
- 影响因子：3.404
- 发表刊物：Optics Letters
- 关键字：Wang Ruohui; Fraser Michael; Li Jiacheng; Qiao Xueguang; Wang Anbo;
- 摘要：We present an integrated in-fiber coupler for excitation of whispering-gallery modes of a microsphere resonator. The coupler is simply fabricated by chemical etching away the holey area of a photonic crystal fiber, leaving a freestanding solid core enclosed in a silica housing. Light is coupled into a microsphere through the suspended core with a diameter of 2.1 mu m. Since the coupler itself performs as a Fabry-Perot interferometer, asymmetric Fano resonances can be observed in the mixed reflection spectrum. The silica housing of the coupler provides a robust mechanical support to the microsphere resonator. The new Fano resonance coupler shows great potential in biochemical sensing and optical switching applications. (C) 2015 Optical Society of America
- 论文类型：期刊论文
- 学科门类：工学
- 一级学科：光学工程
- 文献类型：J
- 是否译文：否
- 发表时间：2015-03-19
- 收录刊物：SCI
