Depolarization of broadband radiation in optical fibers with the twisted structure of birefringence

Gubin, V. P.; Morshnev, S. K.; Starostin, N. I.; Sazonov, A. I.; Chamorovskii, Yuri; Isaev, V. A.

doi:10.1134/s1064226908080093

Cited by 4 publications

(3 citation statements)

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“…The local birefringence of the SHB fiber is quite large to impart high resistance to mechanical perturbations, although its net linear birefringence has been reduced due to the spinning. The previous study [8] has shown an apparent depolarization of the broadband optical radiation propagation along the SHB fiber, even for a short fiber length. Here, we propose a method using a fiber half-wave plate to mitigate depolarization of the fiber.…”

Section: Introductionmentioning

confidence: 79%

“…With the help of the coherency matrix, it is easy to determine the degree of polarization of light wave traveling in a SHB fiber. Let us consider a SHB fiber (fiber length is z), its Jones matrix can be given by [8] cos cos ( / )sin sin sin cos ( / ) cos sin cos sin sin sin 2 2 () sin cos ( / ) cos sin cos cos ( / )sin sin sin sin cos sin 2 2…”

Section: Degree Of Polarizationmentioning

confidence: 99%

“…Finally, the degree of polarization  of radiations is calculated according to Eqs. (8). 4 shows the degree of polarization of the SHB fiber with a length of 10m.…”

Section: Simulationmentioning

confidence: 99%

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Depolarization analysis and compensation in spun birefringent optical fibers with fiber half-wave plate

Zhao

2023

International Conference on Optical and Photonic Engineering (icOPEN 2022)

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The apparent depolarization occurs when the broadband optical radiation propagates along a spun highly birefringent (SHB) fiber, which will cause a decrease in polarization sensibility as well as the performance of the polarimetric sensor using the fiber. In this paper, a fiber half-wave plate made of the helically wound SHB fiber is used to compensate for the depolarization in the fiber. The half-wave plate is created by winding the SHB fiber around a cylinder and it is located at the midpoint of the whole SHB fiber. Therefore, the half-wave plate is an embedded fiber-based compensation element. The degree of polarization in the SHB fiber has been researched by simulation and experiment. The measured result suggests the excellent performance of our compensation method.

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Section: Introductionmentioning

confidence: 79%

Section: Degree Of Polarizationmentioning

confidence: 99%