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Article Dans Une Revue Applied optics Année : 2023

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

Résumé

We experimentally demonstrate a stabilized singlefrequency Brillouin fiber laser operating at 1.06 µm 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 GeO 2 content. The most suitable fiber, namely 21 mol.% GeO 2 core fiber, is used as Brillouin gain medium in the laser cavity made with a 15-m-longsegment. 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.
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Dates et versions

hal-04266597 , version 1 (31-10-2023)

Identifiants

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Moise Deroh, Erwan Lucas, Kamal Hammani, Guy Millot, Bertrand Kibler. Stabilized single-frequency sub-kHz linewidth Brillouin fiber laser cavity operating at 1 µm. Applied optics, 2023, 62 (30), pp.8109-8114. ⟨10.1364/AO.495877⟩. ⟨hal-04266597⟩
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