Blue band nonlinear optics and photodarkening in silica microdevices
書誌事項
- 公開日
- 2022-08-15
- 資源種別
- journal article
- 権利情報
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- © 2022 Chinese Laser Press
- © 2022 Optica Publishing Group. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved.
- DOI
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- 10.1364/prj.459561
- 公開者
- Chinese Laser Press
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説明
There are extensive studies to date on optical nonlinearities in microcavities at the near and mid-IR wavelengths. Pushing this research into the visible region is equally valuable. Here, we demonstrate a directly pumped, blue band Kerr frequency comb and stimulated Raman scattering (SRS) at 462 nm in a silica nanofiber-coupled whispering gallery microcavity system. Notably, due to the high optical intensities achieved, photodarkening is unavoidable and can quickly degrade the optical quality of both the coupling optical nanofiber and the microcavity, even at very low pump powers. Nonetheless, stable hyperparametric oscillation and SRS are demonstrated in the presence of photodarkening by taking advantage of in-situ thermal bleaching. This work highlights the challenges of silica-based, short wavelength nonlinear optics in high-quality, small mode volume devices and gives an effective method to overcome this apparent limitation, thus providing a baseline for optics research in the blue region for any optical devices fabricated from silica.
source:https://opg.optica.org/prj/fulltext.cfm?uri=prj-10-9-2073
収録刊行物
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- Photonics Research
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Photonics Research 10 (9), 2073-2080, 2022-08-15
Chinese Laser Press
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詳細情報 詳細情報について
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- CRID
- 1050856428650032768
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- ISSN
- 23279125
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- 本文言語コード
- en
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- 資料種別
- journal article
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- データソース種別
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