HIGHLY NONLINEAR NEAR-RESONANT PHOTODARKENING IN A THULIUM-DOPED ALUMINOSILICATE GLASS-FIBER

被引：95

作者：

BROER, MM

KROL, DM

DIGIOVANNI, DJ

机构：

[1] AT and T Bell Laboratories, Murray Hill, NJ

来源：

OPTICS LETTERS | 1993年 / 18卷 / 10期

关键词：

D O I：

10.1364/OL.18.000799

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Permanent photoinduced optical attenuation has been observed in Tm3+-doped aluminosilicate glass fibers on exposure to near-resonance mode-locked 1064-nm radiation at 300 K. The rate of this darkening was observed to follow a 4.7 +/- 0.4 power dependence on the 1064-nm intensity. The result shows that absorption of infrared light of moderate intensity can lead to photoionization in rare-earth-doped glass, provided that a multiphoton stepwise excitation channel exists.

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页码：799 / 801

页数：3

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