High-efficiency 17 W, 80 MHz repetition rate, passively mode-locked TEM00 Nd:YAG oscillator pumped at 885 nm

Zhang, X. F.; Li, F. Q.; Zong, Nan; Le, Xinyi; Cui, Dafu; Xu, Zuyan

doi:10.1134/s1054660x11050343

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“…A 2.57 mJ acousto-optical Q-switched Nd:YAG laser using a multi-segmented crystal pumped by 885 nm continuous LD was reported in 2014, the peak power of which was 117 kW with a pulse width of 22 ns at a PRF of 1 kHz [11]. The 885 nm direct pumping has also been successfully used in multi-mode CW [12], passively mode-locked [13] and nonplanar ring oscillator Nd:YAG lasers [14]. By the use of direct pumping, the thermal effects are reduced in all of the above literature.…”

Section: Introductionmentioning

confidence: 99%

A 6.5 ns gain-switched electro-optical Q-switched Nd:YAG laser by 885 nm laser diode pulsed-end pumping

Xu¹,

Wu²,

Li³

et al. 2019

Laser Phys. Lett.

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We demonstrated a compact gain-switched electro-optical Q-switched 1064 nm Nd:YAG laser by 885 nm laser diode pulsed-end pumping at the pulse repetition frequency of 2 kHz. In free-running mode, an output power of 14.44 W was obtained under the absorbed pump power of 23.31 W, and the slope efficiency of 77.2% approached the theoretical limitation. In Q-switching mode, we obtained a maximum single pulse energy of 3 mJ with a pulse width of 6.5 ns, corresponding to a peak power of 462 kW with a beam quality factor M 2 of 1.6.

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Section: Introductionmentioning

confidence: 99%