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Generation of picosecond vortex beam in a self-mode-locked Nd:YVO4 laser

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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.

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Correspondence to Ji-ying Peng  (彭继迎).

Additional information

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).

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Li, Zh., Peng, Jy., Li, Ql. et al. Generation of picosecond vortex beam in a self-mode-locked Nd:YVO4 laser. Optoelectron. Lett. 13, 188–191 (2017). https://doi.org/10.1007/s11801-017-7009-6

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  • DOI: https://doi.org/10.1007/s11801-017-7009-6

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