Photobleaching of UV-induced defects in Er/Al-doped glasses for fiber lasers

被引：4

作者：

Bazakutsa, A. P. ^{[1
]}

Rybaltovsky, A. A. ^{[1
]}

Umnikov, A. A. ^{[2
]}

Butov, O., V ^{[1
]}

机构：

[1] RAS, Kotelnikov Inst Radioengn & Elect, Moscow 125009, Russia

[2] RAS, GG Devyatykh Inst Chem High Pur Subst, Nizhnii Novgorod 603951, Russia

来源：

OPTICAL MATERIALS EXPRESS | 2020年 / 10卷 / 10期

关键词：

OPTICAL-FIBERS; ERBIUM; HYDROGEN; ABSORPTION; PHOTOSENSITIVITY; LUMINESCENCE; GRATINGS; GAIN; H-2;

D O I：

10.1364/OME.403352

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This work contains a study of the mechanisms of emerging and dissociation of UV-induced defects responsible for the degradation of the gain in Er- and Al- codoped silica glass. We investigate absorption spectra changes at the visible and ultraviolet range under UV irradiation at 193 nm and show the role of molecular hydrogen in this process. This includes a detailed description of the observed processes in the glass in terms of photochemical reactions. We also considered the effect of photobleaching of defects under 976 nm irradiation. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

引用

页码：2669 / 2678

页数：10

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