The study of large-broadband OAM mode converter based on helical long period fiber grating

Min-hui Cheng; Ji-hong Liu; Liu-qian Zhu; Li Yang; Dong-dong Han; Jun Dong; Kai-li Ren

doi:10.1117/12.2542307

18 December 2019 The study of large-broadband OAM mode converter based on helical long period fiber grating

Min-hui Cheng, Ji-hong Liu, Liu-qian Zhu, Li Yang, Dong-dong Han, Jun Dong, Kai-li Ren

Proceedings Volume 11340, AOPC 2019: Optical Fiber Sensors and Communication; 113400J (2019) https://doi.org/10.1117/12.2542307
Event: Applied Optics and Photonics China (AOPC2019), 2019, Beijing, China

Abstract

In this paper, for the first time, we propose a large-broadband orbital angular momentum (OAM) mode converter based on helical long period fiber grating (HLPG) working at turning point (TP). Owing to the combination of dual-resonance peaks at TP, an OAM mode converter with 3-dB bandwidth of ~287 nm is readily obtained, and a high coupling efficiency of ~100% is achieved. We believe that this OAM mode converter will play a key role in fiber communication and other fields.

Citation Download Citation

Min-hui Cheng, Ji-hong Liu, Liu-qian Zhu, Li Yang, Dong-dong Han, Jun Dong, and Kai-li Ren "The study of large-broadband OAM mode converter based on helical long period fiber grating", Proc. SPIE 11340, AOPC 2019: Optical Fiber Sensors and Communication, 113400J (18 December 2019); https://doi.org/10.1117/12.2542307

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KEYWORDS

Cladding

Phase matching

Telecommunications

Modulation

Structured optical fibers

Optical design

Optical vortices

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