一种新型超低损耗大有效面光纤的技术研究

doi:10.11959/j.issn.1000-0801.2020312

Abstract

Abstract:

The technical solutions of double-cladding waveguide structure and pure SiO₂core were taken,the G.654.E type ULA-130 fibre ultra-low-loss and large effective area was realized by F-doping design and optimization of the viscosity match between core and caldding.Then the study on various optical characteristics of the ULA-130 fibre was carried out,utilizing self-built optical fibre nonlinear coefficient measurement system and self-designed optical fibre macro-bending loss winding device,as well as the avaliable techniques.The attenuation coefficient,effective area and nonlinear coefficient at 1 550 nm of the ULA-130 fibre was 0.159 dB/km,133 μm²and 1.67×10^-10W^-1separately.According to the theoretical calculation and technical analysis,the ULA-130 fibre posseses excellent attenuation and nonlinear performance,which is applicable in high capacity,high bitrate and long-range optical backbone network system.Compared to conventional G.652.D fibre,the ULA-130 fibre could improve the optical singal-noise ration and the performance of transmission system dramatically.

Key words: ultra-low-loss, large effective area, G.654.E, nonlinear coefficient, backbone network system

CLC Number:

TN818

Di HAN,Hua XIAO,Yuan ZHONG,Xuegang LAO,Chao HAN. Technical research of a new type of optical fibre with ultra-low-loss and large effective area[J]. Telecommunications Science, 2020, 36(12): 41-48.

Figures/Tables 11

References 25

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序号	芯层钾掺杂量/（mg·kg^-1）	1 550 nm衰减系数/（dB·km^-1）
1	0	0.189
2	92	0.177
3	167	0.169
4	324	0.160
5	413	0.153

松绕圈数	芯轴半径	测量波长	宏弯损耗
1	10 mm	1 550 nm	0.02 dB
100	30 mm	1 625 nm	0.006 dB

光纤长度/km	测量光波长/nm	波长间隔/nm	功率差最大值/dB	注入功率范围/mW
0.5	λ₁：1 549.96；λ₂：1 550.26	0.30	0.1	4～17（ULA-130）；6～19（G.652.D）

	模场直径/μm	有效面积/μm²	非线性系数×10^-10W^-1	非线性折射率×10^–20m²/W
G.652.D光纤	10.42	83	2.94	2.45
ULA-130光纤	12.43	133	1.67	2.23

Technical research of a new type of optical fibre with ultra-low-loss and large effective area

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