Generation of Higher Order Vortex Beams from a YVO4/Nd:YVO4 Self-Raman Laser via Off-Axis Pumping with Mode Converter

Cheng Yeh Lee; Chuan Ching Chang; Chun Yu Cho; Pi Hui Tuan; Yung-Fu Chen

doi:10.1109/JSTQE.2014.2324754

Generation of Higher Order Vortex Beams from a YVO₄/Nd:YVO₄ Self-Raman Laser via Off-Axis Pumping with Mode Converter

Cheng Yeh Lee, Chuan Ching Chang, Chun Yu Cho, Pi Hui Tuan, Yung-Fu Chen

電子物理學系

研究成果: Article › 同行評審

29 引文斯高帕斯（Scopus）

摘要

The generation of high-order Hermite-Gaussian (HG) beams at the Stokes wavelength in a YVO₄/Nd:YVO ₄ 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 TEM_0,0 to TEM_3,0. Under the same pump power, the maximum order can be up to TEM_28,0.

原文	English
文章編號	6817541
頁（從 - 到）	318-322
頁數	5
期刊	IEEE Journal of Selected Topics in Quantum Electronics
卷	21
發行號	1
DOIs	https://doi.org/10.1109/JSTQE.2014.2324754
出版狀態	Published - 1 1月 2015

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10.1109/JSTQE.2014.2324754

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title = "Generation of Higher Order Vortex Beams from a YVO4/Nd:YVO4 Self-Raman Laser via Off-Axis Pumping with Mode Converter",

abstract = "The generation of high-order Hermite-Gaussian (HG) beams at the Stokes wavelength in a YVO4/Nd:YVO 4 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.",

keywords = "Beam transformation, Optical vortices, Raman scattering, diode pumping",

author = "Lee, {Cheng Yeh} and Chang, {Chuan Ching} and Cho, {Chun Yu} and Tuan, {Pi Hui} and Yung-Fu Chen",

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AU - Lee, Cheng Yeh

AU - Chang, Chuan Ching

AU - Cho, Chun Yu

AU - Tuan, Pi Hui

AU - Chen, Yung-Fu

PY - 2015/1/1

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N2 - The generation of high-order Hermite-Gaussian (HG) beams at the Stokes wavelength in a YVO4/Nd:YVO 4 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.

AB - The generation of high-order Hermite-Gaussian (HG) beams at the Stokes wavelength in a YVO4/Nd:YVO 4 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.

KW - Beam transformation

KW - Optical vortices

KW - Raman scattering

KW - diode pumping

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Generation of Higher Order Vortex Beams from a YVO4/Nd:YVO4 Self-Raman Laser via Off-Axis Pumping with Mode Converter

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Generation of Higher Order Vortex Beams from a YVO₄/Nd:YVO₄ Self-Raman Laser via Off-Axis Pumping with Mode Converter