2023年6月1日 · Improved ZGP crystal with state-of-art low absorption coefficient and high laser-induced damage threshold at 1.908 μm. Highest output power and efficiency for any kind of Tm laser directly-pumped OPOs. Superior overall photon efficiency of 92.4 % from the 793 nm LD to mid-infrared (MIR) lasers.

2013年6月14日 · We present results from a mid-IR ZGP ring OPO that demonstrates further power scaling of a cascaded mid-IR laser system. The system achieved 30.2 W of mid-IR output with excellent beam quality of M 2 = 1.3.

2025年2月1日 · In this paper, we construct a narrow-linewidth ring cavity ZGP-OPO with an injection of 3.8 μm single-frequency MgO:PPLN laser. This setting achieved effective compression of the linewidth of signal and idler light, and the corresponding maximum output power of signal and idler light were 9.6 W and 6.85 W with a repetition rate of 15 kHz.

In this paper, a high-power and high-efficiency 4.3 µm mid-infrared (MIR) optical parametric oscillator (OPO) based on ZnGeP2 (ZGP) crystal is demonstrated. An acousto-optically Q-switched Ho:Y3Al5O12 laser operating at 2.1 µm with a maximum average output power of 35 W and pulse width of 38 ns at a repetition rate of 15 kHz is established ...

2014年3月29日 · We have demonstrated that we believe to be the first ring ZnGeP2 (ZGP) optical parametric oscillator (OPO) pumped by a pulsed Ho:LuAG laser. The maximum output power of the ring ZGP OPO laser was 5.51 W at 13.1 W incident Ho pump power, corresponding to a slope efficiency of 59.0 %.

We experimentally demonstrate a ZnGeP 2 based optical parametric oscillator (ZGP-OPO) with a record of the optical-to-optical conversion efficiency. To improve the conversion efficiency, we design and construct a double-pass pumped high-gain OPO and a matched large-sized high-peak-power pump beam to suppress the spatial walk-off and conversion.

2024年9月23日 · 在本文中，我们构建了一种窄线宽环腔 ZGP-OPO，并注入了 3.8 μm 单频 MgO：PPLN 激光器。 该设置实现了信号和闲灯线宽的有效压缩，信号和闲灯对应的最大输出功率分别为 9.6 W 和 6.85 W，重复频率为 15 kHz。 通过种子注射，信号光线宽的全宽半高 （FWHM） 在 3816.89 nm 处从 21.84 nm 压缩到 0.42 nm，闲光线宽在 4622.06 nm 处从 28.62 nm 压缩到 0.74 nm。 此外，我们研究了光谱调谐特性，实现了信号光的调谐范围为 …

We present results from a mid-IR ZGP ring OPO that demonstrates further power scaling of a cascaded mid-IR laser system. The system achieved 30.2 W of mid-IR output with excellent beam quality of M2 = 1.3.

2023年6月1日 · In this paper, we construct a narrow-linewidth ring cavity ZGP-OPO with an injection of 3.8 μm single-frequency MgO:PPLN laser. This setting achieved effective compression of the linewidth of signal and idler light, and the corresponding maximum output power of signal and idler light were 9.6 W and 6.85 W with a repetition rate of 15 kHz.

2022年4月14日 · We demonstrate a mid-infrared (mid-IR) ZnGeP 2 (ZGP) rectangle ring optical parametric oscillator (OPO) pumped by an actively/passively Q-switched polycrystalline Ho:YAG laser.