標題: | Generation of Higher Order Vortex Beams From a YVO4/Nd:YVO4 Self-Raman Laser via Off-Axis Pumping With Mode Converter |
作者: | Lee, Cheng-Yeh Chang, Chuan-Ching Cho, Chun-Yu Tuan, Pi-Hui Chen, Yung-Fu 交大名義發表 電子物理學系 電子工程學系及電子研究所 National Chiao Tung University Department of Electrophysics Department of Electronics Engineering and Institute of Electronics |
關鍵字: | Optical vortices;Raman scattering;diode pumping;Beam transformation |
公開日期: | 1-Jan-2015 |
摘要: | The generation of high-order Hermite-Gaussian (HG) beams at the Stokes wavelength in a YVO4/Nd:YVO4 self-Raman laser with off-axis pumping is demonstrated. The high-order vortex beams at the Stokes field are successfully created by transforming these HG modes via an extra-cavity mode converter. The stimulated Raman scattering (SRS) threshold pump power for the diode-end-pumped laser is theoretically analyzed to verify the feasibility of generating high-order HG modes by off-axis pumping. At a pump power of 18.6 W, the SRS output powers can be higher than 1.0 W for the HG modes from TEM0,0 to TEM3,0. Under the same pump power, the maximum order can be up to TEM28,0. |
URI: | http://dx.doi.org/10.1109/JSTQE.2014.2324754 http://hdl.handle.net/11536/25141 |
ISSN: | 1077-260X |
DOI: | 10.1109/JSTQE.2014.2324754 |
期刊: | IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS |
Volume: | 21 |
Issue: | 1 |
結束頁: | |
Appears in Collections: | Articles |
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