| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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First-Stokes Wavelengths at 1175.8 and 1177.1nm Generated in a Diode End-Pumped Nd:YVO$_{4}$/LuVO$_{4}$ Raman Laser |
| Qing-Qing Zhou1, Shen-Cheng Shi1, Si-Meng Chen1, Yan-Min Duan1,2**, Xi-Mei Zhang1, Jing Guo1, Bin Zhao3, Hai-Yong Zhu1** |
1College of Mathematics, Physics and Electronic Information Engineering, Wenzhou University, Wenzhou 325035
2International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060
3College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350108
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| Cite this article: |
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Qing-Qing Zhou, Shen-Cheng Shi, Si-Meng Chen et al 2019 Chin. Phys. Lett. 36 014205 |
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Abstract A diode end-pumped acousto-optic Q-switched Nd:YVO$_{4}$/LuVO$_{4}$ Raman laser is demonstrated. Both YVO$_{4}$ and LuVO$_{4}$ can work as Raman gain, and slightly different active vibration modes of both crystals can result in different first-Stokes wavelengths. The output characteristic as the Raman competition between YVO$_{4}$ and LuVO$_{4}$ crystals for the laser systems with both shared cavity and coupled cavity is experimentally investigated. For the shared cavity, simultaneous Raman conversion in both YVO$_{4}$ and LuVO$_{4}$ crystals is achieved with dual-wavelength emission at 1175.8 and 1177.1 nm. The maximum output power of 1.03 W and the conversion efficiency of 10.3% are obtained. The 0.84 W single first Stokes wavelength at 1177.1 nm with LuVO$_{4}$ Raman conversion is achieved with the coupled cavity. The results show that the coupled cavity with short Raman cavity can obtain a narrow pulse width. The separated laser crystal and Raman gain media with different vanadates in shared cavity have advantages in achieving dual-wavelength lasers with small frequency intervals.
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Received: 19 November 2018
Published: 25 December 2018
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| PACS: |
42.55.Ye
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(Raman lasers)
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42.55.Rz
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(Doped-insulator lasers and other solid state lasers)
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42.55.Xi
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(Diode-pumped lasers)
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| Fund: Supported by the Zhejiang Provincial Natural Science Foundation of China under Grant No LY19F050012, the National Natural Science Foundation of China under Grant No 61505147, the Laboratory Open Project of Wenzhou University under Grant No 18SK31, and the Research Funds of College Student Innovation of Zhejiang Province under Grant No 2018R42901. |
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