Comparison of mid-infrared ZnGeP<sub>2</sub> rectangle ring optical parametric oscillators of three types of resonant regimes

Chen, Yi; Liu, Gaoyou; Yao, Baoquan; Yang, Chao; Duan, Xiaoming; Taguchi, Dai; Wang, Yuezhu

doi:10.1364/ao.58.004163

Cited by 5 publications

(2 citation statements)

References 28 publications

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“…Furthermore, the cavity shapes, and the resonance regime of OPO cavity effectively in uence on the OPO output performance. The reported results at [3] represent the effects of resonance regimes on the output characterize of mid-IR laser pulse. As noted, the characteristics of the OPO output are dependent on the different approaches of the pump and the resonance regime.…”

Section: Introductionmentioning

confidence: 89%

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Influence of pump source beam quality and OPO cavity resonance regime on output characteristics of mid-infrared ZGP-OPO laser

Ebadian,

Tooski,

Maleki

et al. 2023

Preprint

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In this paper, the effect of the pump beam quality on the output results of ZGP-OPO nonlinear conversion pumped by a Q-switched Ho:YLF laser at 2.056 𝜇m wavelength was studied. In the experimental setup, two cavity resonance regimes were applied. First, a U-shape Q-switched resonator at two types of concave-concave and concave-convex structures was investigated. Output energies of 60 and 55 mJ at 24.5 ns of pulse duration were achieved for the resonators mentioned above with double-pass pumping, respectively. In the concave-convex resonator, a far-field beam divergence angle of about 0.7 mrad was recorded, although the conversion efficiency was lower. The maximum conversion efficiency of the linear OPO cavity with a concave-plane structure was recorded. A 30.5 mJ total energy of parametric waves was measured at the PE-DRO resonance regimes pumped by 55 mJ incident energy in the concave-convex resonator at 2056.8 nm Q-switched laser, which corresponds to an optical-to-optical efficiency of 53.5 %. The peak of signal and idler waves are 3779.5 and 4507.6 nm, respectively. The pulse width is about 22.4 ns at the PE-DRO resonance regime

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Section: Introductionmentioning

confidence: 89%

“…Many applications of 3-5 𝜇m laser sources in recent years in the research elds were introduced [1][2][3]. Some applications depend on the region of the atmosphere window.…”

Section: Introductionmentioning

confidence: 99%

Influence of pump source beam quality and OPO cavity resonance regime on output characteristics of mid-infrared ZGP-OPO laser

Ebadian,

Tooski,

Maleki

et al. 2023

Preprint

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Investigation of experimental setup and simulation results of 3–5 μm mid-infrared ZnGeP2 OPO pumped by Q-switched Ho:YLF laser

Tooski

2023

Optics & Laser Technology

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Beam quality and efficiency of ns-pulsed high-power mid-IR ZGP OPOs compared in linear and non-planar ring resonators

et al. 2021

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We compare the performance of ns-pulsed mid-infrared optical parametric oscillators (OPOs) based on ZGP crystals in a simple linear cavity and two non-planar image-rotating resonators. Our 2 μm pump source is a 68 W 10 kHz diffraction limited Ho:LLF MOPA system. In a linear cavity, it allows us to generate up to 38 W of the total average power with M2<2.2 from the ZGP OPO in the 3-5 μm range. Beam quality and stability are significantly improved in both types of non-planar ring resonators (M2<1.8 in RISTRA and M2<1.4 in FIRE), while the total average power is above 21 W. Factors influencing the beam quality such as average power and pump repetition rate are studied in detail.

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Comparison of mid-infrared ZnGeP₂ rectangle ring optical parametric oscillators of three types of resonant regimes

Cited by 5 publications

References 28 publications

Influence of pump source beam quality and OPO cavity resonance regime on output characteristics of mid-infrared ZGP-OPO laser

Influence of pump source beam quality and OPO cavity resonance regime on output characteristics of mid-infrared ZGP-OPO laser

Investigation of experimental setup and simulation results of 3–5 μm mid-infrared ZnGeP2 OPO pumped by Q-switched Ho:YLF laser

Beam quality and efficiency of ns-pulsed high-power mid-IR ZGP OPOs compared in linear and non-planar ring resonators

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Comparison of mid-infrared ZnGeP2 rectangle ring optical parametric oscillators of three types of resonant regimes

Cited by 5 publications

References 28 publications

Influence of pump source beam quality and OPO cavity resonance regime on output characteristics of mid-infrared ZGP-OPO laser

Influence of pump source beam quality and OPO cavity resonance regime on output characteristics of mid-infrared ZGP-OPO laser

Investigation of experimental setup and simulation results of 3–5 μm mid-infrared ZnGeP2 OPO pumped by Q-switched Ho:YLF laser

Beam quality and efficiency of ns-pulsed high-power mid-IR ZGP OPOs compared in linear and non-planar ring resonators

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Comparison of mid-infrared ZnGeP₂ rectangle ring optical parametric oscillators of three types of resonant regimes