激光与光电子学进展, 2020, 57 (11): 111420, 网络出版: 2020-06-02   

基于飞秒激光刻写光纤光栅的研究进展 下载: 2647次

Development of Fiber Gratings Inscribed by Femtosecond Laser
作者单位
1 国防科技大学前沿交叉学科学院, 湖南 长沙 410073
2 脉冲功率激光技术国家重点实验室, 湖南 长沙 410073
3 高能激光技术湖南省重点实验室, 湖南 长沙 410073
摘要
光纤光栅具有抗电磁干扰、耐腐蚀、可塑性强、体积小、质量轻、与光纤系统天然兼容等特点,已被广泛应用于光纤传感、光纤通信、光纤激光器等领域,并发挥了重要作用。目前,常见的光纤光栅制作方法主要有紫外曝光法、CO2激光刻写和飞秒激光刻写。飞秒激光刻写技术的出现大大简化了光纤光栅制作流程,由于其成栅机理不同于常见的紫外曝光法,无需对光纤进行载氢处理,非常有利于在超大芯径光纤上制备高性能光栅。根据是否使用相位模板,基于飞秒的光栅制备总体分为直写和相位模板辅助刻写两种方式。本文从刻写方式的角度对国内外基于飞秒激光的光纤光栅研制情况进行了全面综述,详细总结分析了各种刻写方式的特点与光栅的应用场合,指出其在分布式光纤传感、光纤通信波分复用、多波长激光器、大功率光纤激光器等方面具有潜在的重要应用价值和广泛应用前景。
Abstract
Fiber gratings have the characteristics of anti-electromagnetic interference, good causticity resistance, strong plasticity, small size, light in mass, and natural compatibility with optical fiber systems. They have obtained wide applications in the fields of fiber sensing, fiber communications, fiber lasers, and so on. At present, the common fiber grating manufacturing methods include ultraviolet exposure, CO2 laser inscribing and femtosecond laser inscribing. The advent of femtosecond lasers has greatly simplified the manufacturing process of fiber gratings. As its inscribing mechanism is different from the common ultraviolet exposure method, it does not need to carry hydrogen treatment on the fiber, which is very useful for fabricating high-performance gratings on ultra-large core fibers. According to whether a phase template is used, the fiber grating fabrication using femtosecond laser is generally divided into two ways: direct inscribing and phase mask method. This paper reviews the development of fiber gratings using femtosecond lasers at home and abroad from the perspective of inscribing methods. By summarizing and analyzing the characteristics of various femtosecond inscribing methods and the application of the fabricated gratings, we point that they potentially have important and broad applications in distributed fiber sensing, wavelength division multiplexing of fiber communication, multi-wavelength lasers, high-power fiber lasers, etc.

李宏业, 饶斌裕, 赵晓帆, 胡琪浩, 王蒙, 王泽锋. 基于飞秒激光刻写光纤光栅的研究进展[J]. 激光与光电子学进展, 2020, 57(11): 111420. Hongye Li, Binyu Rao, Xiaofan Zhao, Qihao Hu, Meng Wang, Zefeng Wang. Development of Fiber Gratings Inscribed by Femtosecond Laser[J]. Laser & Optoelectronics Progress, 2020, 57(11): 111420.

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