无机材料学报 ›› 2018, Vol. 33 ›› Issue (1): 107-112.DOI: 10.15541/jim20170126 CSTR: 32189.14.10.15541/jim20170126

• • 上一篇    

固态晶体生长及其在平面波导结构制备上的应用

甘啟俊1,2, 姜本学1, 张攀德1,2, 姜益光1,2, 杨超3, 张文超3, 罗大平3, 李文雪3, 张龙1   

  1. 1. 中国科学院 上海光学精密机械研究所, 强激光材料重点实验室, 上海 201800;
    2. 中国科学院大学, 北京 100049;
    3. 华东师范大学 精密光谱科学与技术国家重点实验室, 上海 200062
  • 收稿日期:2017-03-20 出版日期:2018-01-23 网络出版日期:2017-12-15

Solid-state Crystal Growth and Its Application to Fabricate Planar Waveguides

GAN Qi-Jun1,2, JIANG Ben-Xue1, ZHANG Pan-De1,2, JIANG Yi-Guang1,2, YANG Chao3, ZHANG Wen-Chao3, LUO Da-Ping3, LI Wen-Xue3, ZHANG Long1   

  1. 1. Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China;
    2. University of Chinese Academy of Sciences, Beijing 100049, China;
    3. State Key laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, China
  • Received:2017-03-20 Published:2018-01-23 Online:2017-12-15
  • Supported by:
    National Natural Science Foundation of China (61378069, 61405221)

摘要:

研究了烧结温度、晶粒大小以及掺杂离子对固态晶体生长的影响。在热致固态晶体生长的过程中, 接近键合面的陶瓷会被单晶诱导而转变成取向一样的单晶, 同时形成稳固的键合。实验利用这种方法制备核层为12at%Yb:YAG陶瓷(100 mm), 包层为YAG晶体的平面波导结构。这种方法制备的波导结构没有Yb离子的浓度扩散现象。同时, 还测试了平面波导结构的激光性能: 通过设计平平腔实现了1.14 W, 斜率效率16.09%的激光输出; 在三镜腔中实现1.83 W, 斜率效率9.59%的激光输出。并且激光输出在1027.5 nm到1033.5 nm间连续可调。

关键词: 固态晶体生长, 平面波导, 激光材料

Abstract:

The effect of different factors, i.e., annealing temperature, grain size, and dopant ion on the solid-state crystal growth (SSCG), was studied in this work. In the SSCG process induced by heat treatment, a single crystal absorbs grains near the bonding interface, forming a robust bond. Using this method, a planar waveguide (PWG) consisting of a core layer of 12at% Yb:YAG polycrystal (100 μm) was fabricated and cladded by two YAG single crystal layers. No Yb3+ ion diffusion was observed. The CW laser performance of the Yb:YAG PWG was investigated. A maximum power of 1.14 W with a slope efficiency of 16.09% was obtained in the plano-plano resonator, and a maximum power of 1.83 W with a slope efficiency of 9.59% was obtained in the three-mirror resonator. A tunable laser with a continuous output between 1027.5 nm and 1033.5 nm was realized.

Key words: solid-state crystal growth, planar waveguide, laser materials

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