Control of spontaneous emission coupling factor β in fiber-coupled microsphere resonators

Takashima, Hideaki; Fujiwara, Hideki; Takeuchi, Shigeki et al.

Applied Physics Letters, 2008, 92(7), 071115-1-071115-3

Permalink : https://hdl.handle.net/2115/32714

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アクセス権	open access
URI	https://hdl.handle.net/2115/32714
タイトル	Control of spontaneous emission coupling factor β in fiber-coupled microsphere resonators
著者	Takashima, Hideaki ; Fujiwara, Hideki ; Takeuchi, Shigeki ; Sasaki, Keiji ; Takahashi, Masahide
著者名 Takashima, Hideaki
e-Rad_Researcher 10374670 著者名 Fujiwara, Hideki
e-Rad_Researcher 80321959 著者名 Takeuchi, Shigeki
e-Rad_Researcher 00183822 著者名 Sasaki, Keiji
著者名 Takahashi, Masahide
言語	英語
発行日	2008-02-21
出版者	American Institute of Physics
収録物名	Applied Physics Letters
巻(号)	92(7)
ページ	071115-1-071115-3
抄録	The spontaneous emission coupling factor is studied for fiber-coupled microspheres with a thin gain layer of phosphorus codoped sol-gel erbium silica-aluminum glass. From the input-output characteristics of the lasing, =0.039 is estimated for a sample with a gain layer on the sphere surface. is estimated to increase to 0.19 when an additional silica glass thin layer is overcoated to improve the overlap between the gain layer and the optical mode of the lasing inside the sphere.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	© 2008 American Institute of Physics.
PISSN	0003-6951
EISSN	0003-6951
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.1063/1.2884329