Design of weakly coupled 20-eigenmode bow-tie rectangular dual-step fiber for short-haul communication in O band

Jinyu Zhang; Fang Ren; Jingjing NiuXiao LeiYanfei ZhangFujie CuiJinping Wang

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Design of weakly coupled 20-eigenmode bow-tie rectangular dual-step fiber for short-haul communication in O band

机译：Design of weakly coupled 20-eigenmode bow-tie rectangular dual-step fiber for short-haul communication in O band

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摘要

We present a weakly coupled bow-tie rectangular dual-step few-mode fiber supporting 20 eigenmodes for short-haul communication systems across the O band. The rectangular dual-step core and bow-tie stress-applying area are introduced to effectively split adjacent eigenmodes. We evaluate the impact of parameters on modal mode effective refractive index difference (MERID) Δn_(eff), min Δn_(eff), min A_(eff), B_m, and bending loss at a wavelength of 1310 nm. Broadband performance of the entire O band, including n_(eff), MERID Δn_(eff), differential mode delay, and dispersion, is also analyzed. Results indicate that the 20 eigenmodes supported by the designed fiber are completely separated with MERID Δn_(eff) between adjacent modes larger than 2.319 × 10~(-4) over the whole O band. The designed fiber can be used for short-haul multiple-input multiple-output-free eigenmode-division multiplexing systems to improve transmission capacity and expand bandwidth.

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来源
《Optical Engineering》 |2021年第12期|126107-1-126107-13|共13页
作者
Jinyu Zhang; Fang Ren; Jingjing NiuXiao LeiYanfei ZhangFujie CuiJinping Wang;
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作者单位

University of Science and Technology Beijing, School of Computer and Communication Engineering, Beijing, China;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
中图分类计量学;
关键词
optical fiber; weakly coupled few-mode fiber; short-haul communication; mode-division multiplexing;

Design of weakly coupled 20-eigenmode bow-tie rectangular dual-step fiber for short-haul communication in O band

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