Control of spontaneous emission coupling factor beta in fiber-coupled microsphere resonators
Hideaki Takashima, Hideki Fujiwara, Shigeki Takeuchi, Keiji Sasaki, and Masahide Takahashi
The spontaneous emission coupling factor beta 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, beta=0.039 is estimated for a sample with a gain layer on the sphere surface ... [Appl. Phys. Lett. 92, 071115 (2008)] published Thu Feb 21, 2008.
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The spontaneous emission coupling factor beta 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, beta=0.039 is estimated for a sample with a gain layer on the sphere surface ... [Appl. Phys. Lett. 92, 071115 (2008)] published Thu Feb 21, 2008.
Read full Article »
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