Fabrication of long-period fiber gratings by focused irradiation of infrared femtosecond laser pulses
Fabrication of long-period fiber gratings by focused irradiation of infrared femtosecond laser pulses
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DOI：
10.1364/ol.24.000646
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发表时间：
1999-05-15
期刊：
影响因子：
3.6
通讯作者：
Hirao, K
中科院分区：
文献类型：
--
作者：
Kondo, Y;Nouchi, K;Hirao, K
我们利用红外飞秒激光脉冲聚焦照射的新技术制作了长周期光纤光栅。对制作的光纤光栅的热稳定性进行了研究。500℃以下热处理后的光纤光栅的损耗峰值波长和透过率与热处理前的初始值相同。用这种方法制作的光纤光栅具有很高的抗热衰变性能。我们认为，这种技术将有助于制造具有良好老化特性的光纤光栅。(C)1999年美国光学学会OCIS编码：060.2310、060.2330、060.2340、060.2370、060.2430。
We have fabricated long-period fiber gratings by use of a novel technique using focused irradiation of infrared femtosecond laser pulses. We investigate the thermal stability of the fabricated fiber gratings. The values of the loss peak wavelength and the transmittance of the fiber gratings after heat treatment below 500 degrees C are the same as initial values before heat treatment. The fiber gratings that were fabricated by this technique have a high resistance to thermal decay. We propose that this technique will be useful for fabrication of fiber gratings with a superior aging characteristic. (C) 1999 Optical Society of America OCIS codes: 060.2310, 060.2330, 060.2340, 060.2370, 060.2430.