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一种前向布里渊光纤激光器。

A forward Brillouin fibre laser.

作者信息

Bashan Gil, Diamandi H Hagai, Zehavi Elad, Sharma Kavita, London Yosef, Zadok Avi

机构信息

Faculty of Engineering and Institute for Nano-Technology and Advanced Materials, Bar-Ilan University, Ramat-Gan, 5290002, Israel.

Currently with the Department of Computer Science and Applied Mathematics, Weizmann Institute of Science, Rehovot, 7610001, Israel.

出版信息

Nat Commun. 2022 Jun 21;13(1):3554. doi: 10.1038/s41467-022-31246-y.

DOI:10.1038/s41467-022-31246-y
PMID:35729112
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9213474/
Abstract

Fibre lasers based on backward stimulated Brillouin scattering provide narrow linewidths and serve in signal processing and sensing applications. Stimulated Brillouin scattering in fibres takes place in the forward direction as well, with amplification bandwidths that are narrower by two orders of magnitude. However, forward Brillouin lasers have yet to be realized in any fibre platform. In this work, we report a first forward Brillouin fibre laser, using a bare off-the-shelf, panda-type polarisation maintaining fibre. Pump light in one principal axis provides Brillouin amplification for a co-propagating lasing signal of the orthogonal polarisation. Feedback is provided by Bragg gratings at both ends of the fibre cavity. Single-mode, few-modes and multi-mode regimes of operation are observed. The lasing threshold exhibits a unique environmental sensitivity: it is elevated when the fibre is partially immersed in water due to the broadening of forward Brillouin scattering spectra. The results establish a new type of fibre laser, with potential for ultra-high coherence and precision sensing of media outside the cladding.

摘要

基于后向受激布里渊散射的光纤激光器具有窄线宽，可用于信号处理和传感应用。光纤中的受激布里渊散射也会向前发生，其放大带宽要窄两个数量级。然而，在任何光纤平台上都尚未实现前向布里渊激光器。在这项工作中，我们报道了首个前向布里渊光纤激光器，它使用的是现成的裸熊猫型保偏光纤。沿一个主轴的泵浦光为正交偏振的同向传播激光信号提供布里渊放大。光纤腔两端的布拉格光栅提供反馈。观察到了单模、少模和多模工作模式。激光阈值表现出独特的环境敏感性：当光纤部分浸入水中时，由于前向布里渊散射光谱变宽，阈值会升高。这些结果确立了一种新型光纤激光器，它在超高相干性和包层外介质的精密传感方面具有潜力。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b37/9213474/c3208b3425a5/41467_2022_31246_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b37/9213474/dc29f92f050f/41467_2022_31246_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b37/9213474/0a68ff940128/41467_2022_31246_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b37/9213474/8be39795bdbd/41467_2022_31246_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b37/9213474/858c14ad93f3/41467_2022_31246_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b37/9213474/4f73334eb258/41467_2022_31246_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b37/9213474/5c182bc507ce/41467_2022_31246_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b37/9213474/34c08a054b43/41467_2022_31246_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b37/9213474/c3208b3425a5/41467_2022_31246_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b37/9213474/dc29f92f050f/41467_2022_31246_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b37/9213474/0a68ff940128/41467_2022_31246_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b37/9213474/8be39795bdbd/41467_2022_31246_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b37/9213474/858c14ad93f3/41467_2022_31246_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b37/9213474/4f73334eb258/41467_2022_31246_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b37/9213474/5c182bc507ce/41467_2022_31246_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b37/9213474/34c08a054b43/41467_2022_31246_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b37/9213474/c3208b3425a5/41467_2022_31246_Fig8_HTML.jpg

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本文引用的文献

1
Forward stimulated Brillouin scattering and opto-mechanical non-reciprocity in standard polarization maintaining fibres.标准保偏光纤中的前向受激布里渊散射和光机械非互易性。
Light Sci Appl. 2021 Jun 7;10(1):119. doi: 10.1038/s41377-021-00557-y.
2
Optomechanical time-domain reflectometry.光机械时域反射测量法。
Nat Commun. 2018 Jul 31;9(1):2991. doi: 10.1038/s41467-018-05404-0.
3
Distributed forward Brillouin sensor based on local light phase recovery.基于本地光相位恢复的分布式前向布里渊传感器。
Nat Commun. 2018 Jul 31;9(1):2990. doi: 10.1038/s41467-018-05410-2.
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A silicon Brillouin laser.硅体布里渊激光器。
Science. 2018 Jun 8;360(6393):1113-1116. doi: 10.1126/science.aar6113.
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Opt Lett. 2013 Sep 1;38(17):3208-11. doi: 10.1364/OL.38.003208.
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