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© 2024 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.

Abstract

Sub-nanosecond high-peak-power passively Q-switched yellow and orange lasers are compactly developed using a near-concentric resonator with intracavity-stimulated Raman scattering (SRS) as well as second harmonic generation (SHG). The fundamental wave is generated from an a-cut Nd:YVO4 crystal. The Stokes wave for an SHG yellow (579 nm) or orange (589 nm) laser is generated from a Np-cut potassium gadolinium tungstate (KGW) with the Ng or Nm axis parallel to the c-axis of Nd:YVO4 crystal. The optimal cavity length is systematically explored in a near-concentric configuration to achieve sub-nanosecond high-peak-power pulses. The shortest pulse widths for the yellow and orange output pulses are down to 0.67 ns and 0.70 ns, respectively. The highest peak powers for the yellow and orange output pulses are up to 176 and 138 kW, respectively.

Details

Title
Sub-Nanosecond Passively Q-Switched Yellow and Orange Raman Lasers
Author
Yu-Wen, Ho 1 ; Jian-Cheng, Chen 1 ; Yueh-Chi Tu 1 ; Hsing-Chih Liang 2 ; Yung-Fu, Chen 1   VIAFID ORCID Logo 

 Department of Electrophysics, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan; [email protected] (Y.-W.H.); [email protected] (J.-C.C.); [email protected] (Y.-C.T.) 
 Institute of Physics, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan; [email protected] 
First page
157
Publication year
2024
Publication date
2024
Publisher
MDPI AG
e-ISSN
23046732
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2931053945
Copyright
© 2024 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.