Writing optical waveguides in fused silica using 1 kHz femtosecond infrared pulses
Writing optical waveguides in fused silica using 1 kHz femtosecond infrared pulses
复制标题
使用 1 kHz 飞秒红外脉冲在熔融石英中写入光波导
DOI：
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
R. Vallée
中科院分区：
文献类型：
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作者：
A. Saliminia;N. T. Nguyen;M. Nadeau;S. Petit;S. Chin;R. Vallée
我们研究了使用飞秒钛蓝宝石激光器以 1 kHz 重复率在块状纯熔融石英玻璃中写入波导。光诱导轨迹的特征在于样品的写入几何形状（平行和垂直）、脉冲持续时间（45 fs、140 fs 和 200 fs）、脉冲能量（1-10 μJ）和平移速度（5-150 μm/s）。在特定的写入条件下，实现了具有圆形横截面、芯直径为3-4μm、芯与包层之间折射率变化高达5×10−3的均匀埋入式波导。
We have investigated the writing of waveguides in bulk pure fused silica glass with femtosecond Ti:Sapphire laser at 1 kHz repetition rate. The photoinduced tracks were characterized in terms of writing geometry (parallel and perpendicular), pulse duration (45 fs, 140 fs, and 200 fs), pulse energy (1–10 μJ), and translation speed (5–150 μm/s) of the sample. Under specific writing conditions, uniform buried waveguides with circular cross section, core diameter of 3–4 μm, and refractive-index change as large as 5×10−3 between core and cladding were achieved.