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High-precision fiber Bragg gratings inscription by infrared femtosecond laser direct-writing method assisted with image recognition.
Opt Express. 2020 Mar 16; 28(6):8937-8948.OE

Abstract

For achieving high efficiency fiber Bragg gratings (FBGs) utilizing infrared femtosecond laser point-by-point inscription method, it is crucial to make the inscribed periodic structure perfectly in phase. It requires a perfect alignment between the micrometer-sized laser spot with the fiber along the length. Here we report the highly precise fabrication of FBGs by infrared femtosecond laser point-by-point direct-writing method. Image recognition technique is applied to for automatically aligning the trace of the laser spot with the referenced central axis of the fiber along the whole FBG length. FBGs inscription with high spatial precision is confirmed by multiple approaches, including microscopic photographing and FBG spectroscopic measurement. 50 mm-long uniform FBGs with high reflectivity have been successfully demonstrated in a small-core single-mode silica fiber using auto-aligning technique.

Authors

No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32225509

Citation

Yu, Yanjiang, et al. "High-precision Fiber Bragg Gratings Inscription By Infrared Femtosecond Laser Direct-writing Method Assisted With Image Recognition." Optics Express, vol. 28, no. 6, 2020, pp. 8937-8948.
Yu Y, Shi J, Han F, et al. High-precision fiber Bragg gratings inscription by infrared femtosecond laser direct-writing method assisted with image recognition. Opt Express. 2020;28(6):8937-8948.
Yu, Y., Shi, J., Han, F., Sun, W., & Feng, X. (2020). High-precision fiber Bragg gratings inscription by infrared femtosecond laser direct-writing method assisted with image recognition. Optics Express, 28(6), 8937-8948. https://doi.org/10.1364/OE.388393
Yu Y, et al. High-precision Fiber Bragg Gratings Inscription By Infrared Femtosecond Laser Direct-writing Method Assisted With Image Recognition. Opt Express. 2020 Mar 16;28(6):8937-8948. PubMed PMID: 32225509.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - High-precision fiber Bragg gratings inscription by infrared femtosecond laser direct-writing method assisted with image recognition. AU - Yu,Yanjiang, AU - Shi,Jindan, AU - Han,Feng, AU - Sun,Wenjuan, AU - Feng,Xian, PY - 2020/4/1/entrez SP - 8937 EP - 8948 JF - Optics express JO - Opt Express VL - 28 IS - 6 N2 - For achieving high efficiency fiber Bragg gratings (FBGs) utilizing infrared femtosecond laser point-by-point inscription method, it is crucial to make the inscribed periodic structure perfectly in phase. It requires a perfect alignment between the micrometer-sized laser spot with the fiber along the length. Here we report the highly precise fabrication of FBGs by infrared femtosecond laser point-by-point direct-writing method. Image recognition technique is applied to for automatically aligning the trace of the laser spot with the referenced central axis of the fiber along the whole FBG length. FBGs inscription with high spatial precision is confirmed by multiple approaches, including microscopic photographing and FBG spectroscopic measurement. 50 mm-long uniform FBGs with high reflectivity have been successfully demonstrated in a small-core single-mode silica fiber using auto-aligning technique. SN - 1094-4087 UR - https://www.unboundmedicine.com/medline/citation/32225509/High_precision_fiber_Bragg_gratings_inscription_by_infrared_femtosecond_laser_direct_writing_method_assisted_with_image_recognition_ DB - PRIME DP - Unbound Medicine ER -
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