Stabilized single-frequency sub-kHz linewidth Brillouin fiber laser cavity operating at 1 μm

被引：3
|
作者：
Deroh, Moise [1 ]
Lucas, Erwan [1 ]
Hammani, Kamal [1 ]
Millot, Guy [1 ,2 ]
Kibler, Bertrand [1 ]
机构：
[1] Univ Bourgogne UB, Lab Interdisciplinaire Carnot Bourgogne, CNRS, UMR 6303, Dijon, France
[2] Inst Univ France IUF, 1 Rue Descartes, Paris, France
来源：
APPLIED OPTICS | 2023年 / 62卷 / 30期
关键词：
NOISE; SCATTERING; THRESHOLD;
D O I：
10.1364/AO.495877
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We experimentally demonstrate a stabilized single-frequency Brillouin fiber laser operating at 1.06 mu m by means of a passive highly nonlinear fiber (HNLF) ring cavity combined with a phase-locking loop scheme. The stimulated Brillouin scattering efficiency is first investigated in distinct single-mode germanosilicate core fibers with increasing GeO2 content. The most suitable fiber, namely, 21 mol.% GeO2 core fiber, is used as the Brillouin gain medium in the laser cavity made with a 15-m-long segment. A Stokes lasing threshold of 140 mW is reported. We also show significant linewidth narrowing (below 1 kHz) as well as frequency noise reduction compared to that of the initial pump in our mode-hop free Brillouin fiber laser. (c) 2023 Optica Publishing Group
引用
收藏
页码：8109 / 8114
页数：6
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