一种高效的调q VCSEL阵列泵浦薄Nd:YVO4振荡器

IF 2.5 3区物理与天体物理 Q2 OPTICS

Optics Communications Pub Date : 2025-08-20 DOI:10.1016/j.optcom.2025.132354

Hai Wang , Di Xin , Jiatong Sui , Xuyan Zhou , Hongwei Qu , Mingjin Wang , Aiyi Qi , Hongbo Zhang , Wanhua Zheng

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引用次数: 0

摘要

首次展示了一种无光束耦合、具有高空间亮度和能量稳定性的高效电光调q Nd:YVO4振荡器，该振荡器采用了集成的VCSEL阵列泵浦薄晶元件（VAP-TCC）。为振荡器开发了两个vap - tcc，每个VCSEL阵列的尺寸分别为1 × 1 mm2或2 × 2 mm2，集成了薄Nd:YVO4晶体。该振荡器输出的脉冲能量分别为0.17 mJ和0.92 mJ，脉冲宽度分别为19.8 ns和19.5 ns，峰值功率分别为8.6 kW和47.2 kW。相应的光转换效率分别为24.3%和26.1%。激光束具有良好的对称性和近高斯分布，光束传播产物为0.42 mm⋅mrad和1.31 mm⋅mrad，亮度值分别为3.88 × 1011 W·cm−2·sr−1和2.22 × 1011 W·cm−2·sr−1。此外，输出脉冲特性在200hz以内保持稳定，均方根能量波动始终优于1.00%。这些集成的vap - tcm在产生紧凑、高稳定性和高效率的1 μm纳秒脉冲固体激光器方面表现出巨大的潜力，可用于激光诱导击穿光谱和高精度光检测。

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An efficient Q-switched VCSEL array-pumped thin Nd:YVO4 oscillator

A beam-coupling free, high-efficiency electro-optically Q-switched Nd:YVO₄ oscillator with high spatial brightness and energy stability was demonstrated for the first time, incorporating an integrated VCSEL array-pumped thin crystal component (VAP-TCC). Two VAP-TCCs were developed for the oscillator, each integrating a thin Nd:YVO₄ crystal with a VCSEL array in dimensions of either 1 × 1 mm² or 2 × 2 mm². The oscillators delivered nanosecond pulses with energies of 0.17 mJ and 0.92 mJ, pulse widths of 19.8 ns and 19.5 ns, and peak powers of 8.6 kW and 47.2 kW, respectively. The corresponding optical conversion efficiencies were 24.3 % and 26.1 %. The laser beams exhibited good symmetry and near-Gaussian profiles with beam propagation products of 0.42 mm⋅mrad and 1.31 mm⋅mrad, yielding brightness values of 3.88 × 10¹¹ W⋅ cm⁻²·sr⁻¹ and 2.22 × 10¹¹ W⋅ cm⁻²·sr⁻¹, respectively. Furthermore, the output pulse characteristics remained stable up to 200 Hz, with RMS energy fluctuations consistently better than 1.00 %. These integrated VAP-TCMs exhibit significant potential for generating compact, high-stability, and high-efficiency 1-μm nanosecond pulsed solid-state lasers, enabling applications in laser-induced breakdown spectroscopy and high-precision light detection.

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来源期刊

Optics Communications 物理-光学

CiteScore

5.10

自引率

8.30%

发文量

681

审稿时长

38 days

期刊介绍： Optics Communications invites original and timely contributions containing new results in various fields of optics and photonics. The journal considers theoretical and experimental research in areas ranging from the fundamental properties of light to technological applications. Topics covered include classical and quantum optics, optical physics and light-matter interactions, lasers, imaging, guided-wave optics and optical information processing. Manuscripts should offer clear evidence of novelty and significance. Papers concentrating on mathematical and computational issues, with limited connection to optics, are not suitable for publication in the Journal. Similarly, small technical advances, or papers concerned only with engineering applications or issues of materials science fall outside the journal scope.