396  MHz CPA femtosecond laser system based on a single crystal fiber rod-type amplifier

Author:

Luo Ting12,Wang Tingyao12,Pan Xinjian1,Li Zhili1,Yang Jianjun1,Liu Liming1,Xu Shixiang2ORCID

Affiliation:

1. University of Electronic Science and Technology of China, Zhongshan Institute

2. Shenzhen University

Abstract

The paper presents the results of multiplying the repetition frequency of the seed source to 396 MHz using an extra-cavity fiber multiplication method. The single crystal fiber rod-type amplifier was able to boost the average output power to approximately 15.9 W. Using a transmission gratings-based pulse compressor, an average output power of 9.56 W was achieved, corresponding to a burst energy of up to 382 µJ and a compression efficiency of 81.7%. The shortest pulse duration was optimized to be 594 fs; however, an obvious pedestal was also observed. This system reduces the impact of nonlinear effects on the device by increasing the repetition frequency, thereby increasing the injection energy of a single process in industrial processing.

Funder

National Natural Science Foundation of China

Natural Science Foundation of Chongqing

Guangdong Provincial Department of Education Key Fields Special Project

Publisher

Optica Publishing Group

Subject

Atomic and Molecular Physics, and Optics,Engineering (miscellaneous),Electrical and Electronic Engineering

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