Demonstration of a dual-wavelength Q-switched Tm:YAG laser with V2CTx-based saturable absorber

Yuan, Jinhe; Yang, Xining

doi:10.1016/j.ijleo.2022.170278

Cited by 2 publications

(1 citation statement)

References 27 publications

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“…Passive Q-switching enables high-repetition-rate operation, reaching several 100 kilohertz, based on the characteristics of SA materials. However, it generates pulse energies only in the tens of microjoules, which are insufficient to meet peak power demands in applications [11,12]. To achieve high-peakpower output, EO crystals like LiNbO 3 (LN), RbTiOPO 4 , and La 3 Ga 5 SiO 14 are commonly utilized for EO Q-switch due to their rapid switching speed and high efficiency [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

High-energy, high-peak-power diode-pumped Q-switched Tm:YAG laser at 2.02 μm with tunable repetition rate from 100 Hz to 1000 Hz

Wu,

Du,

Wang

et al. 2024

Laser Phys.

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A high-energy, high-peak-power Q-switched Tm:YAG laser at 2.02 μm with a tunable repetition rate from 100 Hz to 1000 Hz and pulse duration in the hundreds of nanoseconds is demonstrated. The high energy output was achieved by employing a thermally stable linear cavity, including two compact laser diode continuous-wave side-pumped Tm:YAG laser modules. For Q-switched operation, stable Q-switched performance from 100 Hz to 1000 Hz was realized at near-room temperature. At a repetition rate of 100 Hz, the laser delivered a maximum pulse energy of 215 mJ with a pulse duration of 124.4 ns, resulting in a peak power of up to 1.73 MW. When the repetition rate was tuned to 200 Hz, 500 Hz, and 1000 Hz, pulse energies of 212 mJ, 125.6 mJ, and 68.2 mJ were obtained, with pulse durations of 133.6 ns, 176.3 ns, and 262 ns, respectively. To the best of our knowledge, these results represent the highest single pulse energies and peak powers ever accomplished for a diode-pumped Q-switched Tm-doped 2 μm laser operating at high repetition rates exceeding 100 Hz.

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