Research on hundred-watt level megahertz femtosecond pulse laser based on rod-type photonic crystal fiber

Beibei Wang; Zhigang Peng; Zhaochen Cheng; Xu Yan; Pu Wang

doi:10.1117/12.2603024

31 August 2021 Research on hundred-watt level megahertz femtosecond pulse laser based on rod-type photonic crystal fiber

Beibei Wang, Zhigang Peng, Zhaochen Cheng, Xu Yan, Pu Wang

Author Affiliations +

Proceedings Volume 11907, Sixteenth National Conference on Laser Technology and Optoelectronics; 119071L (2021) https://doi.org/10.1117/12.2603024
Event: Sixteenth National Conference on Laser Technology and Optoelectronics, 2021, Shanghai, China

Abstract

A hundred-watt chirped pulse amplification (CPA) fiber laser system based on Yb-doped rod-type photonic crystal fiber (PCF) is demonstrated. The seed was an all-fiber dispersion-managed mode-locked oscillator based on chirped fiber bragg grating (CFBG) and semiconductor saturable absorber mirror (SESAM). The oscillator delivers 1.5 ps pulses at a repetition rate of 45 MHz. The output power from the oscillator was 0.9 mW and the central wavelength was 1032 nm. After pulse stretching, pulse picking and amplification, 151 W output power with repetition rate of 1 MHz was achieved by employing a home-made 85/260 μm PCF (Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences). After compression, laser pulses with duration of 616 fs and average power of 102.9 W were obtained. The single pulse energy and peak power were calculated to be 102.9 μJ and 167 MW respectively.

Citation Download Citation

Beibei Wang, Zhigang Peng, Zhaochen Cheng, Xu Yan, and Pu Wang "Research on hundred-watt level megahertz femtosecond pulse laser based on rod-type photonic crystal fiber", Proc. SPIE 11907, Sixteenth National Conference on Laser Technology and Optoelectronics, 119071L (31 August 2021); https://doi.org/10.1117/12.2603024

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