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Updated: Jun 5, 2026
20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
Published on: July 12, 2017
Millijoule-level Yb-doped photonic crystal fiber laser passively Q-switched with AlGaInAs quantum wells
W Z Zhuang1, W C Huang, P Y Chiang
1Department of Electrophysics, National Chiao Tung University, Hsinchu, Taiwan.
Abstract:
We report on a millijoule-level Yb-doped photonic crystal fiber (PCF) laser passively Q-switched with AlGaInAs quantum wells (QWs). Three types of AlGaInAs devices with different QW numbers are fabricated to investigate the performance. With 50 groups of three AlGaInAs QWs as a saturable absorber (SA), the PCF laser generates an average power of 7.1 W with a pulse repetition rate of 6.5 kHz at a pump power of 16 W, corresponding to the pulse energy of 1.1 mJ. The maximum peak power is up to 110 kW.
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