Summary form only given. The new nonlinear Ca/sub 4/GdO(BO/sub 3/)/sub 3/ (GdCOB) material has probably all the right properties to be used as an efficient crystal for frequency doubling. We recently demonstrated for the first time to our knowledge, the feasibility of optical waveguides in GdCOB by using helium implantation. We report in this paper the investigation of second harmonic generation (SHG) in GdCOB planar waveguides using type I noncritical phase-matching at 823 nm and 960 nm.
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机译：仅提供摘要表格。新的非线性Ca / sub 4 / GdO（BO / sub 3 /）/ sub 3 /（GdCOB）材料可能具有所有合适的特性，可以用作倍频的有效晶体。我们最近就我们所知首次证明了通过使用氦气注入在GdCOB中使用光波导的可行性。我们在本文中报告了在823 nm和960 nm处使用I型非关键相位匹配在GdCOB平面波导中产生二次谐波（SHG）的研究。
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