Demonstration of a bismuth-doped fiber amplifier operating in the S-band with 42 dB gain

被引：0

作者：

Wang, Dingchen ^{[1
,2
]}

Qi, Junjie ^{[1
]}

Huang, Xin ^{[1
]}

Liao, Zhaolong ^{[1
]}

Shen, Lei ^{[1
,3
]}

Pei, Li ^{[2
]}

Zheng, Jingjing ^{[2
]}

Wang, Jianshuai ^{[2
]}

Wang, Lihong ^{[2
]}

Luo, Jie ^{[1
,3
]}

机构：

[1] State Key Laboratory of Optical Fiber and Cable Manufacture Technology, Yangtze Optical Fiber and Cable Joint Stock Limited Company (YOFC), Wuhan

[2] Key Lab of All Optical Network & Advanced Telecommunication Network of EMC, Institute of Lightwave Technology, Beijing Jiaotong University, Beijing

[3] Optics Valley Laboratory, Wuhan

来源：

Optics Express | 2025年 / 33卷 / 08期

基金：

中国国家自然科学基金;

关键词：

Amplifiers (electronic) - Germanium compounds - Optical fiber fabrication - Optical pumping;

D O I：

10.1364/OE.561019

中图分类号：

学科分类号：

摘要：

High-fluorescence bismuth-doped fiber (BDF) in the S-band (1460-1530 nm) has been fabricated by using the modified chemical vapor deposition (MCVD)-solution doping technique. The unsaturated loss (UL) and fluorescence properties of BDF are investigated to develop high-performance bismuth-doped fiber amplifiers (BDFA) operating in the S-band. Both single-pass and double-pass structures are employed to investigate the performance of the BDFA. The experimental results demonstrate that: the unsaturated absorption of this BDF is only 0.08 dB/m, which is 14% of the total small-signal absorption measured; The BDFA achieves net gain amplification for the full S-band in both structures. Under single-pass structure, the BDFA achieves an average gain of 39.8 dB in the range of 1440-1470 nm with a pump power of 1 W and an input power of -30 dBm, with a maximum gain of 41.7 dB and an NF of 5.4 dB at 1450 nm; Under double-pass structure, the BDFA achieves an average gain of 37.6 dB in the S-band range of 1460-1500 nm, where the highest gain of 42.8 dB and an NF of 7.4 dB is achieved at 1470 nm; For the S-band edge 1530 nm, the BDFA also achieves a gain of 11.8 dB. We believe that this BDF has great potential as a high-performance S-band amplifier and laser. © 2025 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement.

引用

页码：17858 / 17868

页数：10

共 15 条

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