A novel optical analysis method for the focal length of muti-core image fiber

Yang Zhigang, Li Xiaotao, Xu Guan, Li Xuefeng, Su Jian, Toshitsugu Ueda, Liu Jianfang

    研究成果: Conference contribution

    抄録

    Focal length of multi-core image fiber is a crucial parameter for the performance of fiberscope. In this letter, we present a novel method that includes simulating the transmission process of waveguides by inputting a plane wave in the wavelength of 0.5μm in cores using finite-difference time-domain (FDTD) method, integrating the power outputs in the end of the core and conforming the numerical aperture (NA) corresponds to the descending area of the output power curve. According to the geometry structure of the fiber, we can calculate the focal length of image fiber conveniently. Computer simulations of a multi-core image fiber with 2.20μm core diameter show that the focal length is 1.258μm. The numerical experiments have demonstrated that the FDTD method can be used to calculate the focal length of image fiber accurately.

    本文言語English
    ホスト出版物のタイトル2009 Symposium on Photonics and Optoelectronics, SOPO 2009
    DOI
    出版ステータスPublished - 2009
    イベント2009 Symposium on Photonics and Optoelectronics, SOPO 2009 - Wuhan
    継続期間: 2009 8 142009 8 16

    Other

    Other2009 Symposium on Photonics and Optoelectronics, SOPO 2009
    CityWuhan
    Period09/8/1409/8/16

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering
    • Electronic, Optical and Magnetic Materials

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