Optical channel waveguides in Nd:YVO4 crystal produced by O+ ion implantation
Optical channel waveguides in Nd:YVO4 crystal produced by O+ ion implantation
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DOI：
10.1063/1.2177632
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发表时间：
2006-02
影响因子：
4
通讯作者：
Feng Chen;Lei Wang;Yi Jiang;Xue-Lin Wang;Ke-ming Wang;G. Fu;Q. Lu;C. Rüter;D. Kip
中科院分区：
文献类型：
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作者：
Feng Chen;Lei Wang;Yi Jiang;Xue-Lin Wang;Ke-ming Wang;G. Fu;Q. Lu;C. Rüter;D. Kip
本文报道了用照相掩模法和3.0MeV氧离子直接注入Nd：YVO_4晶体制作的光通道波导。对样品进行退火处理，以提高波导的稳定性并降低损耗。由注入引起的寻常折射率的增加被认为是波导形成的原因。观察到准TM导模，而没有检测到准TE导模。对于宽度为4、5和6μm的通道波导，光阻尼系数分别为0.43、0.63和0.54cm-1。模态分析结果与试验数据吻合较好。
In this letter, we report on optical channel waveguides in Nd:YVO4 crystals produced by photographic masking and following direct O+ ion implantation at 3.0MeV. Annealing treatments of the samples are performed to improve the waveguide stability and to reduce losses. An increase of the ordinary refractive index induced by the implantation is believed to be responsible for waveguide formation. Quasi-TM guided modes are observed, while no quasi-TE ones are detected. The optical damping coefficients are of 0.43, 0.63, and 0.54cm−1 for channel waveguides with widths of 4, 5, and 6μm, respectively. The result of modal analysis is in agreement with the experimental data.