Single-frequency fiber Fabry–Perot Brillouin laser

Shinya Kato, Takao Aoki*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


We demonstrate single-frequency stimulated Brillouin lasing in short fiber Fabry–Perot resonators. A sub-milliwatt threshold for lasing is observed in resonators with high quality factors of ∼1.5 × 108 and effective resonator lengths as short as ∼5 mm. The strong dispersion of fiber Bragg gratings results in unequal frequency separations for neighboring pairs of longitudinal modes with separation differences larger than the Brillouin gain bandwidth, thereby avoiding cascaded lasing. Our achievement will enable compact, robust, efficient narrow-linewidth light sources.

Original languageEnglish
Pages (from-to)5000-5003
Number of pages4
JournalOptics Letters
Issue number19
Publication statusPublished - 2022 Oct 1

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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