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Tên “Influence of Up-conversion emission on lasing characteristics of micro-sphere lasers based on high-concentration erbium-doped silica-alumina glasses ”
Lĩnh vực Vật Lý
Tác giả Pham Van Hoi, Pham Thanh Binh, Ha Xuan Vinh, Tran Thi Cham, Do Thuy Chi, Nguyen Thuy Van and Nguyen Dang Quoc
Nhà xuất bản / Tạp chí Tuyển tập các báo cáo Hội nghị Vật lý Chất rắn và Khoa học Vật liệu toàn quốc lần thứ 6 (SPMS-2009), Đà Nẵng, Việt Nam, tr.265-268. Năm 2009
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We report new experimental resuls of migration and up-conversion process in the high-concentration Erbium-doped silic-alumina glasses. The experiment shows that under 976nm excitation, the intense of up- conversion emission at 523, 546 and 657nm, corresponding to the transition 2H11/24I15/2, 4S3/24I15/2 and 4F9/24I15/2, respectively, depend on the erbium content, migration of excitation and pump power. The migration of excitation and up-conversion process in the highly Er-doped glasses was verified by increase of threshold and red shift of laser emission wavelength at threshold of micro-spherical cavity lasers made by silica –alumina glasses with different contents of Er-ions. This result is promising for making green light laser from erbium-doped glases.

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