Femtosecond laser written channel optical waveguide in Nd:YAG crystal

被引：16
|
作者：
Li, Shi-Ling [1 ,2 ]
Ye, Yong-Kai [3 ]
Wang, Ming-Wei [4 ]
机构：
[1] Qufu Normal Univ, Shandong Prov Key Lab Laser & Informat Technol, Coll Phys & Engn, Qufu 273165, Peoples R China
[2] Tianjin Univ, Sch Precis Instruments & Optoelect Engn, Dept Optoelect & Informat Engn, Tianjin 300072, Peoples R China
[3] Qufu Normal Univ, Coll Comp Sci, Qufu 273165, Peoples R China
[4] Nankai Univ, Inst Modern Opt, Key Lab Optoelect Informat Sci & Technol, MEC, Tianjin 300071, Peoples R China
来源：
OPTICS AND LASER TECHNOLOGY | 2014年 / 58卷
基金：
中国国家自然科学基金;
关键词：
Channel waveguides; Ultrafast lasers; Laser materials; PULSES; FABRICATION; GLASSES; LINBO3;
D O I：
10.1016/j.optlastec.2013.11.006
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Low-repetition-rate (1 kHz) femtosecond laser inscription is used to fabricate channel waveguides in Nd:YAG crystal. Guiding occurs in the surroundings of the focal spot. End-to-end coupling measurements reveal the near-field intensity distribution of waveguides. The index profile reconstruction, mode analysis performed by the beam propagation method of these waveguides are presented. The waveguide written with 3.0 mu J pulse energy and 100 mu m/s scan velocity shows strong guidance at 632.8 nm, and a propagation loss of about 0.5 dB/mm. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：89 / 93
页数：5
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