Optical fiber coupling of high-energy density pulsed lasers for laser ignition

Wenzhi Qin; Yuan Gao; Duo Tang; Xiangbo Ji; Yong Li; Zhihang Wang; Liang Wang

doi:10.1117/12.2523334

29 March 2019 Optical fiber coupling of high-energy density pulsed lasers for laser ignition

Wenzhi Qin, Yuan Gao, Duo Tang, Xiangbo Ji, Yong Li, Zhihang Wang, Liang Wang

Proceedings Volume 11046, Fifth International Symposium on Laser Interaction with Matter; 110461X (2019) https://doi.org/10.1117/12.2523334
Event: Fifth International Symposium on Laser Interaction with Matter, 2018, Changsha, China

Abstract

In order to improve coupling efficiency and maximal laser transmission energy density, lasers with Gaussian distribution and flat-top distribution were utilized to couple to optical fibers with different surface roughness. The coupling efficiency and damage threshold of the fibers were studied. The experiment results showed that for Gaussian distribution laser beam, optical fibers with higher degree of smoothness would get better coupling efficiency, but would suffer more damage inside the fiber. But for flat-top distribution laser beam, optical fibers with higher degree of smoothness would get both higher coupling energy and efficiency.

Citation Download Citation

Wenzhi Qin, Yuan Gao, Duo Tang, Xiangbo Ji, Yong Li, Zhihang Wang, and Liang Wang "Optical fiber coupling of high-energy density pulsed lasers for laser ignition", Proc. SPIE 11046, Fifth International Symposium on Laser Interaction with Matter, 110461X (29 March 2019); https://doi.org/10.1117/12.2523334

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