5 October 2017 High-energy femtosecond fiber laser system and pulse selection based on high-repetition rate KTiOPO4 Pockels cell
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Abstract
A fiber chirped-pulse amplification system with pulse energy as high as 105  μJ is achieved at 200-kHz repetition rate using the rod-type photonic crystal fiber. The whole system’s nonlinearity accumulated in the fiber amplification is effectively suppressed, and the compressed pulse duration of 808 fs is obtained. A 500-kHz high-repetition rate KTiOPO4 Pockels cell is also applied to make the ultrafast laser pulse selection for generating pulse trains with controllable pulse number and pulse splitting without changing the pulse energy. The demonstrated pulse selection and splitting method are useful for processing of different materials and parallel processing. The pulse selection efficiency of the Pockels cell is as high as 96%.
© 2017 Society of Photo-Optical Instrumentation Engineers (SPIE)
Feng Li, Zhi Yang, Zhiguo Lv, Yang Yang, Wenqi Zhu, Baoning Jiang, Qianglong Li, Xiaojun Yang, Yishan Wang, Wei Zhao, "High-energy femtosecond fiber laser system and pulse selection based on high-repetition rate KTiOPO4 Pockels cell," Optical Engineering 56(10), 106101 (5 October 2017). https://doi.org/10.1117/1.OE.56.10.106101 . Submission: Received: 20 June 2017; Accepted: 15 September 2017
Received: 20 June 2017; Accepted: 15 September 2017; Published: 5 October 2017
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