Hollow fiber optics with improved durability for high-peak-power pulses of Q-switched Nd:YAG lasers.
Hollow fiber optics with improved durability for high-peak-power pulses of Q-switched Nd:YAG lasers.
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DOI：
10.1364/ao.46.001279
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发表时间：
2007-03
期刊：
影响因子：
1.9
通讯作者：
Y. Matsuura;Akio Tsuchiuchi;H. Noguchi;M. Miyagi
中科院分区：
文献类型：
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作者：
Y. Matsuura;Akio Tsuchiuchi;H. Noguchi;M. Miyagi
为了提高用于传输调Q Nd：YAG激光脉冲的空芯光波导的损伤阈值，优化了光纤内涂层的金属化工艺。对于镀银中空纤维为基础，第二，第三Nd：YAG激光器，干燥银膜在一个温和的温度和惰性气体流被发现是有效的。通过使用这种干燥工艺，对于用敏化工艺和不用敏化工艺制造的纤维，对高峰值功率光脉冲辐射的抵抗力显著提高。在光纤中传输的最大峰值功率大于20 MW。为了提高铝涂层中空光纤对Nd：YAG激光四次和五次谐波的能量阈值，在铝膜和玻璃基底之间添加了一层薄的银膜，以增加铝涂层的附着力。通过使用该底漆层，对于Q开关Nd：YAG激光的四次谐波，功率阈值提高到3 MW。
To improve the damage threshold of hollow optical waveguides for transmitting Q-switched Nd:YAG laser pulses, we optimize the metallization processes for the inner coating of fibers. For silver-coated hollow fiber as the base, second, and third Nd:YAG lasers, drying silver films at a moderate temperature and with inert gas flow is found to be effective. By using this drying process, the resistance to high-peak-power optical pulse radiation is drastically improved for fibers fabricated with and without the sensitizing process. The maximum peak power transmitted in the fiber is greater than 20 MW. To improve the energy threshold of aluminum-coated hollow fibers for the fourth and fifth harmonics of Nd:YAG lasers, a thin silver film is added between the aluminum film and the glass substrate to increase adhesion of the aluminum coating. By using this primer layer, the power threshold improves to 3 MW for the fourth harmonics of a Q-switched Nd:YAG laser light.