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Investigation of Nd:YVO4/YVO4 composite crystal and its laser performance pumped by a fiber coupled diode laser |
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| Authors: | Zhuang Zhuo Tao Li Hongzhi Yang |
| Institution: | a Shanda Luneng Information and Technology Co., Limited, Shandong University, Jinan, Shandong 250100, China b College of Physics and Electronics, Shandong Normal University, Jinan, Shandong 250014, China c College of Information Science and Engineering, Shandong University, Jinan, Shandong 250100, China |
| Abstract: | Thermal effect control is critical to scale the output power of diode end-pumping solid lasers to several watts up and beyond. Diffusion bonding crystal has been demonstrated to be an effective method to relieve the thermal lens for the end-pumping laser crystal. The temperature distribution and thermal lens in Nd:YVO4/YVO4 composite crystal was numerically analyzed and compared with that of Nd:YVO4 crystal in this paper. The end-pumping Nd:YVO4/YVO4 composite crystal laser was set up and tested with z cavity. The maximum output power of 9.87 W at 1064 nm and 6.14 W at 532 nm were obtained at the pumping power of 16.5 W. The highest optical-optical conversion efficiencies were up to 60% at 1064 nm and 40% at 532 nm, respectively. |
| Keywords: | 42 70 Hj 42 65 Ky 42 60 Pk 42 55 Xi |
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