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

Xian Zhou; Yutang Dai; Fufei Liu; Joseph Muna Karanja; Meng Zou

doi:10.1117/12.2257105

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23 April 2017 Femtosecond laser inscription of phase-shifted grating by post-processing

Xian Zhou, Yutang Dai, Fufei Liu, Joseph Muna Karanja, Meng Zou

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Proceedings Volume 10323, 25th International Conference on Optical Fiber Sensors; 103231Q (2017) https://doi.org/10.1117/12.2257105
Event: 25th International Conference on Optical Fiber Sensors, 2017, Jeju, Korea, Republic of

Abstract

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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Xian Zhou, Yutang Dai, Fufei Liu, Joseph Muna Karanja, and Meng Zou "Femtosecond laser inscription of phase-shifted grating by post-processing", Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103231Q (23 April 2017); https://doi.org/10.1117/12.2257105

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