UP-CONVERSION LUMINESCENCE OF ER AND CR IN YSGG LASER CRYSTALS

被引：12

作者：

MICHELETTI, R ^{[1
]}

MINGUZZI, P ^{[1
]}

NOGINOV, MA ^{[1
]}

TONELLI, M ^{[1
]}

机构：

[1] ALABAMA A&M UNIV,CTR NONLINEAR OPT & MAT,DEPT PHYS,NORMAL,AL 35762

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 1994年 / 11卷 / 10期

关键词：

D O I：

10.1364/JOSAB.11.002095

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Upconversion and excited-state absorption (ESA) excitation of green luminescence were studied in Er-doped YSGG pumped at 780-825 nm. At high Er concentration (4 x 10(21) cm(-3)), energy-transfer upconversion was the main pump channel for the green Er luminescence; at low Er concentration (2 x 10(20) cm(-3)), ESA predominated at several spectral lines. Upconversion excitation of Cr broadband luminescence through the energy transfer from rare-earth (RE) ions was proposed in Cr,Re codoped crystals. Numerical estimations showed that upconversion efficiency of the proposed schemes can be high enough to reach reasonable excited-state concentrations for both Er and Cr diode-pumped conversion lasers.

引用

页码：2095 / 2099

页数：5

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