Direct writing waveguides inside YAG crystal by femtosecond laser

被引：7

作者：

Xu, Shizhen ^{[1
,2
]}

Qiu, Jianrong ^{[2
]}

Li, Chengbin ^{[2
]}

Sun, Haiyi ^{[2
]}

Xu, Zhizhan ^{[2
]}

机构：

[1] Univ Elect Sci & Technol China, Dept Appl Phys, Chengdu 610054, Peoples R China

[2] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, State Key Lab High Field Laser Phys, Shanghai 201800, Peoples R China

来源：

OPTICS COMMUNICATIONS | 2009年 / 282卷 / 24期

关键词：

Ultrafast nonlinear optics; Laser material processing; Waveguide; Ultrafast lasers; Optical materials; YTTRIUM-ALUMINUM-GARNET; RARE-EARTH ALUMINUM; FUSED-SILICA; INDUCED BIREFRINGENCE; YAG-ND3+ CRYSTAL; REFRACTIVE-INDEX; SINGLE-CRYSTALS; LITHIUM-NIOBATE; IRON GARNETS; PULSES;

D O I：

10.1016/j.optcom.2009.09.012

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A 120 fs Ti-sapphire laser was used to fabricate waveguides in YAG crystal. A 7 mm long waveguide was written at a position of 100 mu m below the surface, which shows multimode propagation at 633 nm with optical attenuation of about 0.2 dB/mm. The light guiding occurs in the region around the visible laser-damaged region, indicating that the light guiding area is induced by stress. The waveguide exhibited strong birefringence property with maximum magnitude of about 1.5 x 10(-5). Infrared and Raman spectroscopy analysis indicate there is no change in chemical composition in laser-modified zone. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：4810 / 4814

页数：5

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