Efficient high-pulse-energy eye-safe laser generated by an intracavity Nd: YLF/KTP optical parametric oscillator: Role of thermally induced polarization switching

Y. J. Huang; C. Y. Tang; Y. P. Huang; C. Y. Cho; Kuan-Wei Su; Yung-Fu Chen

doi:10.7452/lapl.201210071

Efficient high-pulse-energy eye-safe laser generated by an intracavity Nd: YLF/KTP optical parametric oscillator: Role of thermally induced polarization switching

Y. J. Huang, C. Y. Tang, Y. P. Huang, C. Y. Cho, Kuan-Wei Su, Yung-Fu Chen^*

^*此作品的通信作者

電子物理學系

研究成果: Article › 同行評審

9 引文斯高帕斯（Scopus）

摘要

A high-pulse-energy eye-safe laser at 1552 nm is effectually generated by an intracavity Nd:YLF/KTP optical parametric oscillator (OPO) with the help of the thermally induced polarization switching. The polarization characteristics of the c-cut Nd:YLF laser at 1053 nm in the continuous-wave (CW) and Q-switched operation are comprehensively investigated. We experimentally verify the thermally induced birefringence can lead to a polarization switching between the mutually orthogonal components of the fundamental pulses. Consequently, an efficient intracavity nonlinear frequency conversion can be achieved in an optically isotropic laser crystal without any additional polarization control. With this finding, the pulse energy and peak power of the compact Nd:YLF/KTP eye-safe laser under an incident pump power of 12.7 W and a pulse repetition rate of 5 kHz are up to 306 μJ and 4 kW, respectively.

原文	English
頁（從 - 到）	709-715
頁數	7
期刊	Laser Physics Letters
卷	9
發行號	10
DOIs	https://doi.org/10.7452/lapl.201210071
出版狀態	Published - 27 12月 2012

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title = "Efficient high-pulse-energy eye-safe laser generated by an intracavity Nd: YLF/KTP optical parametric oscillator: Role of thermally induced polarization switching",

abstract = "A high-pulse-energy eye-safe laser at 1552 nm is effectually generated by an intracavity Nd:YLF/KTP optical parametric oscillator (OPO) with the help of the thermally induced polarization switching. The polarization characteristics of the c-cut Nd:YLF laser at 1053 nm in the continuous-wave (CW) and Q-switched operation are comprehensively investigated. We experimentally verify the thermally induced birefringence can lead to a polarization switching between the mutually orthogonal components of the fundamental pulses. Consequently, an efficient intracavity nonlinear frequency conversion can be achieved in an optically isotropic laser crystal without any additional polarization control. With this finding, the pulse energy and peak power of the compact Nd:YLF/KTP eye-safe laser under an incident pump power of 12.7 W and a pulse repetition rate of 5 kHz are up to 306 μJ and 4 kW, respectively.",

author = "Huang, {Y. J.} and Tang, {C. Y.} and Huang, {Y. P.} and Cho, {C. Y.} and Kuan-Wei Su and Yung-Fu Chen",

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T2 - YLF/KTP optical parametric oscillator: Role of thermally induced polarization switching

AU - Huang, Y. J.

AU - Tang, C. Y.

AU - Huang, Y. P.

AU - Cho, C. Y.

AU - Su, Kuan-Wei

AU - Chen, Yung-Fu

PY - 2012/12/27

Y1 - 2012/12/27

N2 - A high-pulse-energy eye-safe laser at 1552 nm is effectually generated by an intracavity Nd:YLF/KTP optical parametric oscillator (OPO) with the help of the thermally induced polarization switching. The polarization characteristics of the c-cut Nd:YLF laser at 1053 nm in the continuous-wave (CW) and Q-switched operation are comprehensively investigated. We experimentally verify the thermally induced birefringence can lead to a polarization switching between the mutually orthogonal components of the fundamental pulses. Consequently, an efficient intracavity nonlinear frequency conversion can be achieved in an optically isotropic laser crystal without any additional polarization control. With this finding, the pulse energy and peak power of the compact Nd:YLF/KTP eye-safe laser under an incident pump power of 12.7 W and a pulse repetition rate of 5 kHz are up to 306 μJ and 4 kW, respectively.

AB - A high-pulse-energy eye-safe laser at 1552 nm is effectually generated by an intracavity Nd:YLF/KTP optical parametric oscillator (OPO) with the help of the thermally induced polarization switching. The polarization characteristics of the c-cut Nd:YLF laser at 1053 nm in the continuous-wave (CW) and Q-switched operation are comprehensively investigated. We experimentally verify the thermally induced birefringence can lead to a polarization switching between the mutually orthogonal components of the fundamental pulses. Consequently, an efficient intracavity nonlinear frequency conversion can be achieved in an optically isotropic laser crystal without any additional polarization control. With this finding, the pulse energy and peak power of the compact Nd:YLF/KTP eye-safe laser under an incident pump power of 12.7 W and a pulse repetition rate of 5 kHz are up to 306 μJ and 4 kW, respectively.

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Efficient high-pulse-energy eye-safe laser generated by an intracavity Nd: YLF/KTP optical parametric oscillator: Role of thermally induced polarization switching

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