Tunable photonic bandgap fibers (PBGFs) were theoretically investigated by using the vector plane-wave expansion method and the vector finite element method. The tunable PBGFs are fabricated by filling a high-index material in the air holes of index-guiding photonic crystal fibers. The wavelength dependence of leaky loss and group velocity dispersion (GVD) has been illustrated. We show the leaky loss in the tunable PBGFs can strongly depend on the refractive index of filled material due to the photonic bandgap effect. The tunable attenuator which operates at 1550 nm is designed based on this PBGFs.


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    Title :

    Theoretical research on tunable fiber devices in a photonic crystal fiber


    Contributors:
    Liu, Jianfei (author) / Wang, Zhi (author) / Kai, Guiyun (author) / Zhang, Chunshu (author) / Sun, Tingting (author) / Liu, Yange (author) / Zhang, Weigang (author) / Yuan, Shuzhong (author) / Dong, Xiaoyi (author)

    Conference:

    Advanced Laser Technologies 2005 ; 2005 ; Tianjin,China


    Published in:

    Publication date :

    2006-06-09





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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