Brillouin lasing in whispering gallery micro-resonators
Thresholds of stimulated Brillouin scattering (SBS) in solid-state whispering gallery mode (WGM) microresonators are analyzed. It is shown that the SBS interaction is substantially different here from that known in the bulk case and in the case of water droplet resonators. The reason is the absence...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2015-01-01
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| Series: | New Journal of Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1367-2630/17/12/125006 |
| _version_ | 1797751017479077888 |
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| author | B Sturman I Breunig |
| author_facet | B Sturman I Breunig |
| author_sort | B Sturman |
| collection | DOAJ |
| description | Thresholds of stimulated Brillouin scattering (SBS) in solid-state whispering gallery mode (WGM) microresonators are analyzed. It is shown that the SBS interaction is substantially different here from that known in the bulk case and in the case of water droplet resonators. The reason is the absence of pure longitudinal acoustic WGMs owing to strong coupling of the longitudinal ( l ) and transverse ( t ) acoustic displacements at the surface of the resonator. As a result, a considerable increase of the SBS thresholds takes place, and the lowest thresholds correspond to the hybrid tl -modes with very large radial indices. Nevertheless, the thresholds lie in the μ W range of the pump power. Dependence of the SBS power thresholds on the modal numbers and the possibility of self-tuning to the SBS resonance are analyzed. |
| first_indexed | 2024-03-12T16:42:13Z |
| format | Article |
| id | doaj.art-2af9e88d6d314f78b2781088177037e6 |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:42:13Z |
| publishDate | 2015-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-2af9e88d6d314f78b2781088177037e62023-08-08T14:24:05ZengIOP PublishingNew Journal of Physics1367-26302015-01-01171212500610.1088/1367-2630/17/12/125006Brillouin lasing in whispering gallery micro-resonatorsB Sturman0I Breunig1Institute of Automation and Electrometry , Russian Academy of Sciences, 630090 Novosibirsk, RussiaUniversity of Freiburg , IMTEK, Georges-Köhler-Allee 102, 79110 Freiburg, GermanyThresholds of stimulated Brillouin scattering (SBS) in solid-state whispering gallery mode (WGM) microresonators are analyzed. It is shown that the SBS interaction is substantially different here from that known in the bulk case and in the case of water droplet resonators. The reason is the absence of pure longitudinal acoustic WGMs owing to strong coupling of the longitudinal ( l ) and transverse ( t ) acoustic displacements at the surface of the resonator. As a result, a considerable increase of the SBS thresholds takes place, and the lowest thresholds correspond to the hybrid tl -modes with very large radial indices. Nevertheless, the thresholds lie in the μ W range of the pump power. Dependence of the SBS power thresholds on the modal numbers and the possibility of self-tuning to the SBS resonance are analyzed.https://doi.org/10.1088/1367-2630/17/12/125006whispering gallery modesresonant frequenciesSBS power thresholdsoverlap factorsphase matching |
| spellingShingle | B Sturman I Breunig Brillouin lasing in whispering gallery micro-resonators New Journal of Physics whispering gallery modes resonant frequencies SBS power thresholds overlap factors phase matching |
| title | Brillouin lasing in whispering gallery micro-resonators |
| title_full | Brillouin lasing in whispering gallery micro-resonators |
| title_fullStr | Brillouin lasing in whispering gallery micro-resonators |
| title_full_unstemmed | Brillouin lasing in whispering gallery micro-resonators |
| title_short | Brillouin lasing in whispering gallery micro-resonators |
| title_sort | brillouin lasing in whispering gallery micro resonators |
| topic | whispering gallery modes resonant frequencies SBS power thresholds overlap factors phase matching |
| url | https://doi.org/10.1088/1367-2630/17/12/125006 |
| work_keys_str_mv | AT bsturman brillouinlasinginwhisperinggallerymicroresonators AT ibreunig brillouinlasinginwhisperinggallerymicroresonators |