| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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A 117-W 1.66-Times Diffraction Limited Continuous-Wave Nd:YVO$_{4}$ Zigzag Slab Laser with Multilayer Amplified-Spontaneous-Emission Absorbing Coatings |
| Zhi-Feng Zhang1,2, Shuai Li3, Yang Li2, Yang Kou2, Ke Liu2, Yan-Yong Lin2, Lei Yuan2, Yi-Ting Xu2**, Qin-Jun Peng2, Zu-Yan Xu2 |
1University of Chinese Academy of Sciences, Beijing 100190, China
2Key Laboratory of Solid-State Laser, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
3Beijing Aerocim Technology Co., Ltd, Beijing 100043, China
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| Cite this article: |
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Zhi-Feng Zhang, Shuai Li, Yang Li et al 2020 Chin. Phys. Lett. 37 064203 |
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Abstract We report a continuous-wave end-pumped Nd:YVO$_{4}$ zigzag slab laser with multilayer amplified spontaneous emission (ASE) absorbing coatings. The coatings are deposited on the slab faces. A five-layer structure consists of SiO$_{2}$-Ti-SiO$_{2}$-Ti-Au, and the thicknesses are 2520 nm, 10 nm, 160 nm, 24 nm and 200 nm, respectively. The designed coatings show good performance for the ASE control in the experimental tests. A stable-unstable hybrid laser oscillator along orthogonal directions in the slab aperture is further configured, achieving the 117 W output at a pump of 328 W. The beam quality factors $M^{2}$ in the unstable direction and stable direction are 1.57 and 1.66, respectively.
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Received: 10 March 2020
Published: 26 May 2020
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| PACS: |
42.55.Xi
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(Diode-pumped lasers)
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42.60.Da
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(Resonators, cavities, amplifiers, arrays, and rings)
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42.60.Pk
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(Continuous operation)
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| Fund: *Supported by the National Key R&D of China (Grant No. 2016YFB0402103), the National Natural Science Foundation of China (Grant No. 61875208), and the Knowledge Innovation Program of Chinese Academy of Sciences (Grant No. GJJSTD20180004). |
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