Power coupling characteristics of a single mode optical fiber with a rectangular hole

Jianxia Liu; Ruoxi Li; Xingchao Ma; Pingping Lu

doi:10.1117/12.2505259

15 November 2018 Power coupling characteristics of a single mode optical fiber with a rectangular hole

Jianxia Liu, Ruoxi Li, Xingchao Ma, Pingping Lu

Proceedings Volume 10964, Tenth International Conference on Information Optics and Photonics; 109641G (2018) https://doi.org/10.1117/12.2505259
Event: Tenth International Conference on Information Optics and Photonics (CIOP 2018), 2018, Beijing, China

Abstract

A single mode optical fiber with a rectangular hole is proposed. Power coupling characteristics of the optical fiber are analyzed and discussed using numerical method. Firstly, the coupling intensity from the fiber core to the rectangular hole is investigated in different distances between the fiber core and the rectangular hole and different refractive index of the rectangular hole. Secondly, the power complete conversion and transmission characteristics are also investigated in different distances between the fiber core and the rectangular hole and different refractive index of the rectangular hole. The results show that the coupling efficiency of the proposed optical fiber from the fiber core to the rectangular hole can nearly reach to 50%. The high coupling efficiency from the fiber core to the rectangular hole can be used to develop the high efficiency mode converters. Moreover, the results also show that the coupling efficiency is higher when the refractive index of the rectangular hole is bigger than the refractive index of the fiber core. So, the proposed optical fiber has the potential application value in high refractive index sensing.

Citation Download Citation

Jianxia Liu, Ruoxi Li, Xingchao Ma, and Pingping Lu "Power coupling characteristics of a single mode optical fiber with a rectangular hole", Proc. SPIE 10964, Tenth International Conference on Information Optics and Photonics, 109641G (15 November 2018); https://doi.org/10.1117/12.2505259

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KEYWORDS

Refractive index

Optical fibers

Fiber couplers

Cladding

Structured optical fibers

Fiber characterization

Beam propagation method

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