Development of Fiber Bragg Grating and Long Period Theory Research

He Min

《International Core Journal of Engineering》 10卷1期 (2024/01) Pp. 102-106

https://doi.org/10.6919/ICJE.202401_10(1).0017

摘要

The emergence of optical fibers and the development of various optical fiber devices have greatly promoted the development of optical communication technology, sensing technology and information technology. Communication technology based on optical fibers and their functional devices has the advantages of long distance, large capacity, and high fidelity, and is the foundation of modern communications in the world. Since LPFG was first proposed in 1996, it has become a research hotspot because of its completely different spectral characteristics from FBG. This article focuses on LPFG prepared from ordinary single-mode optical fiber, starting from the mode distribution of light waves in the optical fiber, focusing on research and analysis. Based on the theoretical basis, the study analyzes three modes in LPFG, aiming to provide a certain cognitive and interpretive basis for long-period fiber grating research.

關鍵字

Optical Fiber Development ； LPFG ； Sensing Theory

參考文獻

T. Ismael, C. Daniel E, and S. Karla M. Mechanically-induced long period fiber grating using laminated plates[J]. Sensors, 2020, 20(9): 2582.

F. Delgado, and A. Bessa. Torsion-dependent spectral response of long-period fiber grating based on electric arc technique with axial rotation of the fiber[J]. Microwave and Optical Technology Letters, 2018, 61(1): 178-181.

A. L. Aldaba, A. Gonzalez, M. Debliquy, C. Caucheteur, and D. Lahem. Polyaniline-coated titled fiber Bragg gratings for pH sensing[J]. Sensors and Actuators B: Chemical, 2018, 254: 1087-1093.

Y. Zhao, Y. Liu, and L. Zhang. Mode converter based on the long-period fiber gratings written in the two-mode fiber[J]. Optics Express, 2013, 24(6): 6186-6195.

X. Dong, X. Zheng, Y. Song, K. Yin, D. Zhe, and J. Duan. High temperature-sensitivity sensor based on long period fiber grating inscribed with femtosecond laser transversal-scanning method[J]. Chinese Optics Letters. 2017, 15(9): 090602.