LI Hai-lan, WANG Yan, ZHANG Xing-jiao, YE Zhi-qing. Transmission characteristics of high-birefringence Sagnac loop filter[J]. Journal of Applied Optics, 2011, 32(5): 899-903.
Citation: LI Hai-lan, WANG Yan, ZHANG Xing-jiao, YE Zhi-qing. Transmission characteristics of high-birefringence Sagnac loop filter[J]. Journal of Applied Optics, 2011, 32(5): 899-903.
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Transmission characteristics of high-birefringence Sagnac loop filter

  • 1.

    Institute of Physics and Communication &Electronics,Jiangxi Normal University,Nanchang 330022,China;

  • 2.

    Department of Mechanical &Electronic Engineering,Pingxiang College,Pingxiang 337000,China

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  • Transmission characteristics of a high-birefringence Sagnac loop was studied by using transfer matrix method, numerical simulation and experimental investigation. The Sagnac loop filter was composed of an optical coupler (OC), a polarization controller (PC) and polarization-maintaining fiber (PMF). The influence of PMF characteristics and PC state on transmission characteristics of Sagnac loop was theoretically analyzed. The transmission spectra of different PMFs, birefringences (n) and PCs state were obtained through numerical simulation. The experiment was done and the results indicated that the wavelength spacing was determined by PMF length and birefringence (n), the transitivity by PC state and transmission peak by PMF and PC state. The experimental results agreed with the theoretical analysis.
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