基于PbS掺杂少模光纤的线偏振模放大

doi:10.3969/j.issn.0255-8297.2022.05.009

应用科学学报 ›› 2022, Vol. 40 ›› Issue (5): 801-808.doi: 10.3969/j.issn.0255-8297.2022.05.009

基于PbS掺杂少模光纤的线偏振模放大

杨金红^1,2, 商娅娜^1,2, 韦绘梅^1,2, 庞拂飞^1,2, 文建湘^1,2, 董艳华^1,2, 陈娜^1,2, 陈振宜^1,2

1. 上海大学特种光纤与光接入网重点实验室, 上海 200444;
2. 上海大学特种光纤与先进通信国际合作联合实验室, 上海 200444

收稿日期:2021-05-21 出版日期:2022-09-30 发布日期:2022-09-30
通信作者: 商娅娜,副教授,研究方向为特种光纤与光纤器件。E-mail:ynshang@shu.edu.cn E-mail:ynshang@shu.edu.cn
基金资助:
国家自然科学基金（No.61875118，No.61675125，No.61635006）；高等学校学科创新引智计划（111计划）（No.D20031）资助

Linearly Polarized Modes Amplifier Based on PbS doped Few-Mode Fiber

YANG Jinhong^1,2, SHANG Yana^1,2, WEI Huimei^1,2, PANG Fufei^1,2, WEN Jianxiang^1,2, DONG Yanhua^1,2, CHEN Na^1,2, CHEN Zhenyi^1,2

1. Key Laboratory of Specialty Fiber Optics and Optical Access Networks, Shanghai University, Shanghai 200444, China;
2. Joint International Research Laboratory of Specialty Fiber Optics and Advanced Communication, Shanghai University, Shanghai 200444, China

Received:2021-05-21 Online:2022-09-30 Published:2022-09-30

摘要/Abstract

摘要： 本文采用改进的化学气相沉积（modified chemical vapor deposition，MCVD）法制备了一种新型少模光纤——硫化铅（PbS）掺杂少模光纤，研究了该光纤的荧光特性，并基于空间光调制器搭建了少模光纤放大系统，测量了光纤的模式增益特性。实验结果表明：在980 nm激光泵浦下，该光纤表现出超宽带近红外发光，光谱范围为1 050~1 650 nm；在1 540~1 560 nm波段范围内，实现了LP₀₁和LP₁₁模式放大，平均模式开关增益为4.5 dB，差模增益小于0.6 dB。该光纤为模分复用系统实现宽带模式放大提供了可行性。

关键词: 光纤放大器, 硫化铅掺杂光纤, 线偏振模, 模式开关增益

Abstract: In this paper, a new type of few-mode fiber, lead sulfide (PbS) doped fewmode fiber is fabricated using modified chemical vapor deposition (MCVD) technique. The fluorescence characteristics of the fiber is characterized. A few-mode fiber amplification system based on the spatial light modulator is built, and the mode gain characteristics of the fiber are measured. The experimental results show that the fiber exhibits ultrawideband near-infrared luminescence when pumped by a 980 nm laser, and the spectral range is from 1 050 nm to 1 650 nm. The LP₀₁ and LP₁₁ mode amplifications are realized with the average modal on-off gain of 4.5 dB and the differential modal gain is less than 0.6 dB within the band from 1 540 to 1 560 nm. The optical fiber provides the feasibility to realize broadband mode amplification in the mode division multiplexing system.

Key words: optical fiber amplifier, lead sulfide doped optical fiber, linearly polarized mode, modal on-off gain

中图分类号:

P751.1

杨金红, 商娅娜, 韦绘梅, 庞拂飞, 文建湘, 董艳华, 陈娜, 陈振宜. 基于PbS掺杂少模光纤的线偏振模放大[J]. 应用科学学报, 2022, 40(5): 801-808.

YANG Jinhong, SHANG Yana, WEI Huimei, PANG Fufei, WEN Jianxiang, DONG Yanhua, CHEN Na, CHEN Zhenyi. Linearly Polarized Modes Amplifier Based on PbS doped Few-Mode Fiber[J]. Journal of Applied Sciences, 2022, 40(5): 801-808.

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基于PbS掺杂少模光纤的线偏振模放大

Linearly Polarized Modes Amplifier Based on PbS doped Few-Mode Fiber

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