Numerical Simulation of C+L Broadband Single-mode Fiber

2022 IEEE 7th Optoelectronics Global Conference (OGC) Pub Date : 2022-12-06 DOI:10.1109/OGC55558.2022.10050912

G. H. Zhang, W. Sun, F. Lei, W. Chen, L. Wang, Y. L. Wang, Y. T. Li, H. Guan, J. Yuan, Z. Jiang, Q. Liu

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Abstract

A novelty C+L single-mode fiber (CL fiber for short) which can expand L-band communication is proposed to meet the urgent demand of optical fiber transmission bandwidth for large capacity communication system. The influence of L-band attenuation on the optical signal-to-noise ratio (OSNR) of the system is analyzed and calculated; through the simulation of dense wavelength division multiplexing (DWDM) system, the requirements for fiber attenuation warping degree (FAWD) of CL fiber in 100Gbit/s rate DWDM system are obtained; and the CL fiber and its main attenuation parameters are defined. The results show that, the OSNR of L-band for conventional single-mode fiber will be 2dB-2.5dB worse than traditional C-band on 100km span system, so it is very important to limit the FAWD of L-band; if the L-band transmission can meet the link requirements in relevant standards, it is recommended that the FAWD Δα1625 of CL fiber is suitable to be controlled below 0.015dB/km, and the fiber attenuation warping degree difference (FAWDD) Δα is suitable to be controlled below 0.005dB/km.

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C+L宽带单模光纤的数值模拟

为满足大容量通信系统对光纤传输带宽的迫切需求，提出了一种新型的C+L单模光纤(简称CL光纤)，可扩展L波段通信。分析和计算了l波段衰减对系统光信噪比的影响;通过对密集波分复用(DWDM)系统的仿真，得到了100Gbit/s速率DWDM系统中CL光纤的光纤衰减翘曲度(FAWD)要求;定义了CL光纤及其主要衰减参数。结果表明，在100km跨度系统中，常规单模光纤l波段的OSNR会比传统c波段低2dB-2.5dB，因此限制l波段的FAWD具有重要意义;如果l波段传输能满足相关标准中的链路要求，建议CL光纤的FAWD Δα1625适宜控制在0.015dB/km以下，光纤衰减整经度差(FAWDD) Δα适宜控制在0.005dB/km以下。

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2022 IEEE 7th Optoelectronics Global Conference (OGC)

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