ZHOU Chun-xin, HUANG Ping, ZENG Qing-ke, QIN Zi-xiong. Simulation study on the relation between the structural parameters and the transmission spectra of a long period fiber grating[J]. Journal of Applied Optics, 2010, 31(4): 632-635.
Citation: ZHOU Chun-xin, HUANG Ping, ZENG Qing-ke, QIN Zi-xiong. Simulation study on the relation between the structural parameters and the transmission spectra of a long period fiber grating[J]. Journal of Applied Optics, 2010, 31(4): 632-635.
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Simulation study on the relation between the structural parameters and the transmission spectra of a long period fiber grating

  • 1.

    Department of Physics and Information Technology,Guilin Normal College,Guilin 541001,China;

  • 2.

    College of Electronic Engineering,Guangxi Normal University,Guilin 541004,China;

  • 3.

    College of Physics and Technology,Guangxi Normal University,Guilin 541004,China

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    • Abstract
  • Based on the three-layer fiber model, we found that the relation between the structural parameters and the transmission spectra of LPFG is regular variation, and the variation rules of the transmission spectra were presented. This paper only considers the couple between lowest-order cladding modes and the fundamental core mode. When radii and refractive index of fiber core and cladding increase, the resonance wavelengths shift towards shorter wavelength; When grating period increase, the resonance wavelengths shift towards longer wavelength; When grating length increase, the resonance wavelengths have no shift, but its depth decreases. Comprehensive analysis shows that the shift in the resonance wavelengths is clear, but the change of depth doesnt have distinct rules.
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    • References (1)
  • ［1］WANG Y P, JIN W, WANG D N. Unique tem-perature sensing characteristics of CO2-laser-notched long-period fiber gratings［J］. Optics and Lasers in Engineering, 2009,47(10):1044-1048.
    ［2］SAKATA H, SUZUKI S, ITO H, et al. Long-period fiber-grating-based bandpass filter using self-aligned absorptive core mode blocker［J］. Optical Fiber Technology, 2008,14(2):93-96.
    ［3］黄桂岭,赵启大,刘松芬,等.长周期光纤光栅透射谱与结构参数关系的研究［J］. 光电子·激光, 2007,18(5):519-522.
    HUANG Gui-ling, ZHAO Qi-da, LIU Song-fen,et al. Study of the relation between the transmission spectra and the structural parameters for a long-period fiber grating［J］. Journal of Optoelectronics·Laser, 2007,18(5):519-522. (in Chinese with an English abstract)
    ［4］ERDOGAN T. Cladding-mode resonances in short-and long-period fiber grating filters［J］. Journal of the Optical Society of America A, 1997, 14(8):1760-1773.
    ［5］ERDOGAN T. Fiber grating spectra［J］. Journal of Lightwave Technology, 1997,15(8):1277-1294.
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