Home > Archive>Volume 13, Issue 3, 2017 >188-191. DOI:10.1007/s11801-017-7009-6
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Generation of picosecond vortex beam in a self-mode-locked Nd:YVO4 laser
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Key Laboratory of Luminescence and Optical Information, Ministry of Education of China, Institute of Laser, School of Science, Beijing Jiaotong University, Beijing 100044, China

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    Abstract:

    In this paper, a self-mode-locked Nd:YVO4 picosecond vortex laser is demonstrated, which can operate on the different Laguerre-Gaussian (LG) modes at 1 064 nm. A π/2 mode converter is utilized to realize the picosecond vortex laser with LG mode transformed from the high-order Hermite-Gaussian (HG) mode. For the proposed laser, the mode-locked pulse repetition rate is 1.81 GHz. The average output powers of LG12 mode and LG02 mode are 1.241 W and 1.27 W, respectively, and their slope efficiencies are 23.2% and 24%, respectively. This work has been supported by the National Natural Science Foundation of China (No.61108021), and the Fundamental Research Funds for the Central Universities (Nos. 2013JBM091 and S16JB00010). E-mail:pengjiying@163.com

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LI Zuo-han, PENG Ji-ying, LI Qing-ling, GAO Yi-Fei, LI Jian-wei, CAO Qiu-yuan. Generation of picosecond vortex beam in a self-mode-locked Nd:YVO4 laser[J]. Optoelectronics Letters,2017,13(3):188-191

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  • Received:January 13,2017
  • Online: September 29,2017
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