880-nm-Diode-Laser-End-Pumped Electrooptically Q-Switched Nd:YLF Laser With High Energy and Good Beam Quality at 1047 nm and 1 kHz
An electrooptically Q-switched Nd:YLF laser end-pumped by an 880-nm laser diode with high energy and short pulsewidth at 1 kHz is demonstrated. The asymmetry of the focal lengths of thermal lens along the <inline-formula> <tex-math notation="LaTeX">$a$</tex-math></inli...
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IEEE
2016-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/7378830/ |
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| author | Zilong Zhang Qiang Liu Mingming Nie Encai Ji Mali Gong |
| author_facet | Zilong Zhang Qiang Liu Mingming Nie Encai Ji Mali Gong |
| author_sort | Zilong Zhang |
| collection | DOAJ |
| description | An electrooptically Q-switched Nd:YLF laser end-pumped by an 880-nm laser diode with high energy and short pulsewidth at 1 kHz is demonstrated. The asymmetry of the focal lengths of thermal lens along the <inline-formula> <tex-math notation="LaTeX">$a$</tex-math></inline-formula>-axis and <inline-formula> <tex-math notation="LaTeX">$c$</tex-math></inline-formula>-axis is observed, and the cylindrical lens is used to compensate for the thermal lens effect along the <inline-formula> <tex-math notation="LaTeX">$a$</tex-math></inline-formula>-axis. We experimentally studied the performance of the Nd:YLF laser with different combinations of the output coupler transmission <inline-formula> <tex-math notation="LaTeX">$T$</tex-math></inline-formula> and the focal length <inline-formula> <tex-math notation="LaTeX">$f$</tex-math></inline-formula> of cylindrical lens. With <inline-formula> <tex-math notation="LaTeX">$T=40\%$</tex-math></inline-formula> and <inline-formula> <tex-math notation="LaTeX">$f=300\ \text{mm}$</tex-math></inline-formula>, 9.5-mJ pulse energy, 9.5-ns pulsewidth, and beam quality factors of <inline-formula> <tex-math notation="LaTeX">$M_{x}^{2}=1.74$</tex-math></inline-formula> and <inline-formula> <tex-math notation="LaTeX">$M_{y}^{2}=1.97$</tex-math></inline-formula> are obtained. Moreover, the relationships between the pulse width and pump power as well as beam transverse mode were experimentally studied and discussed. |
| format | Article |
| id | doaj-art-5d7ded826a454d7384b64e5ccda729a4 |
| institution | DOAJ |
| issn | 1943-0655 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-5d7ded826a454d7384b64e5ccda729a42025-08-20T02:42:00ZengIEEEIEEE Photonics Journal1943-06552016-01-01811810.1109/JPHOT.2016.25171347378830880-nm-Diode-Laser-End-Pumped Electrooptically Q-Switched Nd:YLF Laser With High Energy and Good Beam Quality at 1047 nm and 1 kHzZilong Zhang0Qiang Liu1Mingming Nie2Encai Ji3Mali Gong4Dept. of Precision Instrum., Tsinghua Univ., Beijing, ChinaDept. of Precision Instrum., Tsinghua Univ., Beijing, ChinaDept. of Precision Instrum., Tsinghua Univ., Beijing, ChinaDept. of Precision Instrum., Tsinghua Univ., Beijing, ChinaDept. of Precision Instrum., Tsinghua Univ., Beijing, ChinaAn electrooptically Q-switched Nd:YLF laser end-pumped by an 880-nm laser diode with high energy and short pulsewidth at 1 kHz is demonstrated. The asymmetry of the focal lengths of thermal lens along the <inline-formula> <tex-math notation="LaTeX">$a$</tex-math></inline-formula>-axis and <inline-formula> <tex-math notation="LaTeX">$c$</tex-math></inline-formula>-axis is observed, and the cylindrical lens is used to compensate for the thermal lens effect along the <inline-formula> <tex-math notation="LaTeX">$a$</tex-math></inline-formula>-axis. We experimentally studied the performance of the Nd:YLF laser with different combinations of the output coupler transmission <inline-formula> <tex-math notation="LaTeX">$T$</tex-math></inline-formula> and the focal length <inline-formula> <tex-math notation="LaTeX">$f$</tex-math></inline-formula> of cylindrical lens. With <inline-formula> <tex-math notation="LaTeX">$T=40\%$</tex-math></inline-formula> and <inline-formula> <tex-math notation="LaTeX">$f=300\ \text{mm}$</tex-math></inline-formula>, 9.5-mJ pulse energy, 9.5-ns pulsewidth, and beam quality factors of <inline-formula> <tex-math notation="LaTeX">$M_{x}^{2}=1.74$</tex-math></inline-formula> and <inline-formula> <tex-math notation="LaTeX">$M_{y}^{2}=1.97$</tex-math></inline-formula> are obtained. Moreover, the relationships between the pulse width and pump power as well as beam transverse mode were experimentally studied and discussed.https://ieeexplore.ieee.org/document/7378830/Diode-pumped lasersQ-switched lasers |
| spellingShingle | Zilong Zhang Qiang Liu Mingming Nie Encai Ji Mali Gong 880-nm-Diode-Laser-End-Pumped Electrooptically Q-Switched Nd:YLF Laser With High Energy and Good Beam Quality at 1047 nm and 1 kHz IEEE Photonics Journal Diode-pumped lasers Q-switched lasers |
| title | 880-nm-Diode-Laser-End-Pumped Electrooptically Q-Switched Nd:YLF Laser With High Energy and Good Beam Quality at 1047 nm and 1 kHz |
| title_full | 880-nm-Diode-Laser-End-Pumped Electrooptically Q-Switched Nd:YLF Laser With High Energy and Good Beam Quality at 1047 nm and 1 kHz |
| title_fullStr | 880-nm-Diode-Laser-End-Pumped Electrooptically Q-Switched Nd:YLF Laser With High Energy and Good Beam Quality at 1047 nm and 1 kHz |
| title_full_unstemmed | 880-nm-Diode-Laser-End-Pumped Electrooptically Q-Switched Nd:YLF Laser With High Energy and Good Beam Quality at 1047 nm and 1 kHz |
| title_short | 880-nm-Diode-Laser-End-Pumped Electrooptically Q-Switched Nd:YLF Laser With High Energy and Good Beam Quality at 1047 nm and 1 kHz |
| title_sort | 880 nm diode laser end pumped electrooptically q switched nd ylf laser with high energy and good beam quality at 1047 nm and 1 khz |
| topic | Diode-pumped lasers Q-switched lasers |
| url | https://ieeexplore.ieee.org/document/7378830/ |
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