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Updated: Jun 10, 2026
20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
Published on: July 12, 2017
Pulsed orange generation optimized in a diode-pumped Nd:YVO4 laser using monolithic dual PPLN electro-optic Q
W K Chang1, Y H Chen, J W Chang
1Department of Optics and Photonics, National Central University, Jhongli 320, Taiwan.
Abstract:
We report a pulsed intracavity sum-frequency generator in a diode-pumped, dual-wavelength Nd:YVO(4) laser whose operation was optimized with two electro-optic Q switches built in a monolithic periodically poled lithium niobate (PPLN) crystal. The dual PPLN Q switches, though integrated, are able to work separately at their respective working wavelengths of 1064 and 1342 nm. At 4.8 W diode pump power and 5 kHz Q-switching rate, a maximum orange (593 nm) output peak power of >480 W was achieved in this laser system using the Q-switch opening-time offset technique. This power is approximately 1.7 times higher than that obtained with the system operated in a conventional single-Q-switch mode.
