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Conferences > CLEOPR > 2022 > P_CTh1 > P_CTh1_12

High-Repetition-Rate Structured Oval Pulsed Fields with Controllable Mode Order by an Nd:YVO4/Cr4+:YAG Laser in a Near-Hemispherical Resonator

Pi-Hui Tuan, Wan-Chen Tsai, and Yu-Zhe Cheng

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Abstract

Generation of high-transverse-order structured pulsed fields with oval-shaped morphologies is explored by an Nd:YVO4/Cr4+:YAG passively Q-switched (PQS) laser in a tightly-focusing pumped near-hemispherical cavity. By increasing the input pump power, the mode order of the generated structured oval beams can be directly controlled with good beam stability. At a pump level of 8 W, the average output power of the oval structured PQS field can reach up to 2.27 W with the pulse repetition rate and the peak power respectively beyond 125 kHz and 400 W while maintaining quite regular PQS performance.

© 2022 IEEE

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