Sub-Nanosecond Passively Q-Switched Yellow and Orange Raman Lasers
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 <i>a</i>-cut Nd...
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MDPI AG
2024-02-01
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| Series: | Photonics |
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| Online Access: | https://www.mdpi.com/2304-6732/11/2/157 |
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| author | Yu-Wen Ho Jian-Cheng Chen Yueh-Chi Tu Hsing-Chih Liang Yung-Fu Chen |
| author_facet | Yu-Wen Ho Jian-Cheng Chen Yueh-Chi Tu Hsing-Chih Liang Yung-Fu Chen |
| author_sort | Yu-Wen Ho |
| collection | DOAJ |
| description | 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 <i>a</i>-cut Nd:YVO<sub>4</sub> 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 <i>N<sub>g</sub></i> or <i>N<sub>m</sub></i> axis parallel to the <i>c</i>-axis of Nd:YVO<sub>4</sub> 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. |
| first_indexed | 2024-03-07T22:17:16Z |
| format | Article |
| id | doaj.art-b19eba363bbe4c64b45dd5245fe4e8a0 |
| institution | Directory Open Access Journal |
| issn | 2304-6732 |
| language | English |
| last_indexed | 2024-03-07T22:17:16Z |
| publishDate | 2024-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Photonics |
| spelling | doaj.art-b19eba363bbe4c64b45dd5245fe4e8a02024-02-23T15:31:41ZengMDPI AGPhotonics2304-67322024-02-0111215710.3390/photonics11020157Sub-Nanosecond Passively Q-Switched Yellow and Orange Raman LasersYu-Wen Ho0Jian-Cheng Chen1Yueh-Chi Tu2Hsing-Chih Liang3Yung-Fu Chen4Department of Electrophysics, National Yang Ming Chiao Tung University, Hsinchu 30010, TaiwanDepartment of Electrophysics, National Yang Ming Chiao Tung University, Hsinchu 30010, TaiwanDepartment of Electrophysics, National Yang Ming Chiao Tung University, Hsinchu 30010, TaiwanInstitute of Physics, National Yang Ming Chiao Tung University, Hsinchu 30010, TaiwanDepartment of Electrophysics, National Yang Ming Chiao Tung University, Hsinchu 30010, TaiwanSub-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 <i>a</i>-cut Nd:YVO<sub>4</sub> 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 <i>N<sub>g</sub></i> or <i>N<sub>m</sub></i> axis parallel to the <i>c</i>-axis of Nd:YVO<sub>4</sub> 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.https://www.mdpi.com/2304-6732/11/2/157stimulated Raman scatteringpassively Q-switched laserNd:YVO<sub>4</sub> crystalKGW crystal |
| spellingShingle | Yu-Wen Ho Jian-Cheng Chen Yueh-Chi Tu Hsing-Chih Liang Yung-Fu Chen Sub-Nanosecond Passively Q-Switched Yellow and Orange Raman Lasers Photonics stimulated Raman scattering passively Q-switched laser Nd:YVO<sub>4</sub> crystal KGW crystal |
| title | Sub-Nanosecond Passively Q-Switched Yellow and Orange Raman Lasers |
| title_full | Sub-Nanosecond Passively Q-Switched Yellow and Orange Raman Lasers |
| title_fullStr | Sub-Nanosecond Passively Q-Switched Yellow and Orange Raman Lasers |
| title_full_unstemmed | Sub-Nanosecond Passively Q-Switched Yellow and Orange Raman Lasers |
| title_short | Sub-Nanosecond Passively Q-Switched Yellow and Orange Raman Lasers |
| title_sort | sub nanosecond passively q switched yellow and orange raman lasers |
| topic | stimulated Raman scattering passively Q-switched laser Nd:YVO<sub>4</sub> crystal KGW crystal |
| url | https://www.mdpi.com/2304-6732/11/2/157 |
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