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

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    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.

    Original languageEnglish
    Title of host publication2009 Symposium on Photonics and Optoelectronics, SOPO 2009
    DOIs
    Publication statusPublished - 2009
    Event2009 Symposium on Photonics and Optoelectronics, SOPO 2009 - Wuhan
    Duration: 2009 Aug 142009 Aug 16

    Other

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

    Keywords

    • Finite-difference time-domain (FDTD)
    • Focal length
    • Image fiber
    • Numerical aperture (NA)

    ASJC Scopus subject areas

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

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  • Cite this

    Zhigang, Y., Xiaotao, L., Guan, X., Xuefeng, L., Jian, S., Ueda, T., & Jianfang, L. (2009). A novel optical analysis method for the focal length of muti-core image fiber. In 2009 Symposium on Photonics and Optoelectronics, SOPO 2009 [5230220] https://doi.org/10.1109/SOPO.2009.5230220