• Chinese Journal of Lasers
  • Vol. 49, Issue 3, 0306004 (2022)
Yinghao Guo1、2, Mei Liu1、2, Min Tang1、2, Wenhua Ren1、2, and Guobin Ren1、2、*
Author Affiliations
  • 1Institute of Lightwave Technology, Beijing Jiaotong University, Beijing 100044, China
  • 2Key Laboratory of All Optical Network and Advanced Telecommunication Network of Ministry of Education, Beijing Jiaotong University, Beijing 100044, China
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    DOI: 10.3788/CJL202249.0306004 Cite this Article Set citation alerts
    Yinghao Guo, Mei Liu, Min Tang, Wenhua Ren, Guobin Ren. All-Fiber Mode Selective Coupler Based on Vector Modes[J]. Chinese Journal of Lasers, 2022, 49(3): 0306004 Copy Citation Text show less

    Abstract

    Conclusions

    In this paper, an all-fiber mode selective coupler based on vector modes is proposed, which consists of a single mode fiber and an air-core ring few mode fiber. Based on the mode-coupling theory, the coupling characteristics of this vector mode selective coupler are investigated. In addition, we explore the influences of core distance on the crosstalk between high order vector modes and the working bandwidth. The results show that this vector mode selective coupler can realize the coupling from the fundamental mode to the special high order mode with a high coupling efficiency in the wavelength range of 15431556 nm. The crosstalk and the working bandwidth can be regulated by changing the core distance. Moreover, the low crosstalk and the wide bandwidth mode coupling are achieved at a core distance of 11 μm. The results in this paper can find applications in fiber lasers, optical tweezers, and mode division multiplexing systems.

    Yinghao Guo, Mei Liu, Min Tang, Wenhua Ren, Guobin Ren. All-Fiber Mode Selective Coupler Based on Vector Modes[J]. Chinese Journal of Lasers, 2022, 49(3): 0306004
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