Control of femtosecond laser written waveguides in silica glass
Control of femtosecond laser written waveguides in silica glass
复制标题
石英玻璃中飞秒激光写入波导的控制
DOI：
10.1117/12.566808
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发表时间：
2004
期刊：
影响因子：
--
通讯作者：
R. Vallée
中科院分区：
文献类型：
--
作者：
N. T. Nguyen;A. Saliminia;See Leang Chin;R. Vallée
针对不同的聚焦几何形状，系统地确定了通过使用1 kHz聚焦的800 nm飞秒激光脉冲在块状熔融石英玻璃中制造光波导的写入条件。结果表明，波导可以形成的基础上的光学击穿，双折射（单或多），或两者的组合过程中，当使用的脉冲能量低于阈值的结构损伤。对激光诱导折射率变化的机理进行了讨论。
Writing conditions for the fabrication of optical waveguides in bulk fused silica glass by use of 1 kHz focused femtosecond laser pulses at 800 nm were systematically determined for different focusing geometries. The results demonstrate that waveguides can be formed based on optical breakdown, filamentation (single or multiple), or a combination of both processes, when using pulse energies lower than the threshold of structural damage. The mechanisms of laser-induced index change are also discussed.