Study on characteristics of fiber loop mirror filters based on single fiber Mach-Zehnder (M-Z) optimization

Lv, Zheng-bing; Dong, Xinyue; Ding, Xiangxia; Li, Jiang; Wu, Jing; Wang, Jun

doi:10.1109/piers.2016.7735334

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2017

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“…The single-mode fiber changes the fiber outer diameter so that its transmission mode changes along the axial distribution [4][5][6][7]. The part of the light energy transmitted in the core is coupled into the cladding in the form of evanescent field to form the Mach-Zehnder interferometer structure [8], thereby changing the optical signal in the single-mode fiber propagation characteristics. In this paper, it is proposed to place the cascade cone structure in different refractive index liquid and put it into the Sagnac ring to form a new type filter to meet the requirements of low cost and tunable.…”

Section: Introductionmentioning

confidence: 99%

A Novel M-Z Interferometer with Different Cascade Cones

Hu¹,

Lv²,

Ji³

et al. 2017

dtetr

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Abstract. In the single-mode fiber, the cascaded symmetric taper was pulled out and it has formed Mach-Zehnder interferometer(MZI), which was put into the optical fiber loop mirror and a different refractive index environment. Theoretical and experimental study on the improvement of the filter characteristics and the sensing characteristics of the sensor. The interferometer has a low insertion loss, stable performance, compatibility, etc, which can be used in optical fiber communication and fiber sensing field.

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Section: Introductionmentioning

confidence: 99%