Strong channel waveguides have been fabricated in a photosensitive bulk tin-doped sodium silicate glass by direct writing technique. The estimated maximum index variation and propagation loss were 1.5 x 10-3 and below 1.3 dB/cm, respectively.
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机译：已经通过直接写入技术在光敏块状掺锡硅酸钠玻璃中制造了强通道波导。估计的最大指数变化和传播损耗分别为1.5 x 10-3和低于1.3 dB / cm。
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