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Erschienen in: Optical and Quantum Electronics 10/2023

01.10.2023

A weakly-coupled air-hole-bow-tie-assisted few-mode fiber for short-haul MDM across C + L band

verfasst von: Yingjuan Ci, Fang Ren, Xiao Lei, Yanfei Zhang, Xiaohui Wang, Jianping Wang

Erschienen in: Optical and Quantum Electronics | Ausgabe 10/2023

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Abstract

We present a weakly-coupled air-hole-bow-tie-assisted few-mode fiber (AH-BT-FMF) supporting 26 eigenmodes for short-haul communication systems across the C + L band. The elliptical core, air holes, and bow-tie stress-applying area are introduced to effectively split adjacent eigenmodes. We evaluate the impact of fiber parameters on minimum effective refractive index difference (min Δneff) between adjacent modes, birefringence (B), and bending loss at a wavelength of 1550 nm. The broadband performance of the fiber is further investigated across the C + L band, including the effective refractive index difference (Δneff) between adjacent modes, differential mode delay (DMD), dispersion, and effective area (Aeff). Simulated results indicate that the 26 eigenmodes supported by the designed fiber are completely separated. The min Δneff between adjacent modes is larger than 1.982 × 10−4 over the whole C + L band. And the designed fiber has a higher effective area (66.56 –131.1 µm2), lower DMD (− 8.07  to  10.96 ns/km), and good bending resistance (< 10–4 dB/m). 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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Metadaten
Titel
A weakly-coupled air-hole-bow-tie-assisted few-mode fiber for short-haul MDM across C + L band
verfasst von
Yingjuan Ci
Fang Ren
Xiao Lei
Yanfei Zhang
Xiaohui Wang
Jianping Wang
Publikationsdatum
01.10.2023
Verlag
Springer US
Erschienen in
Optical and Quantum Electronics / Ausgabe 10/2023
Print ISSN: 0306-8919
Elektronische ISSN: 1572-817X
DOI
https://doi.org/10.1007/s11082-023-05176-y

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