后处理的移相光栅飞秒激光刻字

2017 25th Optical Fiber Sensors Conference (OFS) Pub Date : 2017-04-23 DOI:10.1117/12.2257105

Xian Zhou, Y. Dai, Fufei Liu, Joseph Muna Karanja, Meng Zou

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引用次数: 0

摘要

介绍了利用飞秒激光后处理技术制作不需要相位掩模的移相光纤布拉格光栅(PSFBG)。用光纤激光器照射标准单模光纤布拉格光栅的中心区域。设计了旋转夹具，使光纤在激光照射时能够固定和旋转。随着激光能量的增大，PSFBG的传输峰带宽和传输损耗呈增大趋势。该方法制备的PSFBG简便、快速、重复性好。

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Femtosecond laser inscription of phase-shifted grating by post-processing

The method of fabricating phase-shifted fiber Bragg grating (PSFBG) that does not need a phase mask by femtosecond laser (fs) post-processing is demonstrated. A central region of standard single mode fiber Bragg grating (FBG) is irradiated by fs laser. A rotating jig is designed to hold and rotate the fiber when the fiber is irradiated by laser. The bandwidth of transmission peak of PSFBG and the transmission loss is growing with increasing of laser energy. PSFBG produced by this method is simple, fast and reproducible.

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2017 25th Optical Fiber Sensors Conference (OFS)

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