Use of GaAs as a passive Q-switch as well as an output coupler for diode-pumped Nd:YVO4 lasers
碩士 === 國防大學中正理工學院 === 應用物理研究所 === 94 === In this paper, we investigate an all-solid-state passive Q-switched Nd:YVO4 laser system. Q-switching operation is very common and important for diode-pumped solid-state lasers. And in recent years, Q-switched lasers have been used in many fields, such as non...
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ndltd-TW-094CCIT05040012015-10-13T11:56:53Z http://ndltd.ncl.edu.tw/handle/93917818462083697801 Use of GaAs as a passive Q-switch as well as an output coupler for diode-pumped Nd:YVO4 lasers 以GaAs為被動Q-開關及輸出耦合鏡之全固態Nd:YVO4雷射 Lin, Yao-chun 林耀群 碩士 國防大學中正理工學院 應用物理研究所 94 In this paper, we investigate an all-solid-state passive Q-switched Nd:YVO4 laser system. Q-switching operation is very common and important for diode-pumped solid-state lasers. And in recent years, Q-switched lasers have been used in many fields, such as nonlinear optics, range finding, medicine, and micromachining, etc. In this experiment, we use GaAs wafer as an important element for passive Q-switching. The GaAs wafer, which works as an saturable absorber, was used as the Q-switch in the laser system. Moreover, GaAs wafer also acts as an anti-resonant Fabry-Perot resonantor, so we use it as an output coupler. Its reflectance is 73.5%, and its transmittance is 26.5%. We use two gain media with different lengths. One is 6 mm, and the other is 3 mm. The results of this experiment are as follows: The cavity length is adjustable from 8 mm to 17 mm;the shotest pulse width is 7 ns;its photon lifetime is about 0.33 ns;the highest peak power is 314 W;the highest repetition rate is about 1.7 MHz;its pulse energy is up to 2.2 μJ. 蒲念文 2005 學位論文 ; thesis 54 zh-TW |
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碩士 === 國防大學中正理工學院 === 應用物理研究所 === 94 === In this paper, we investigate an all-solid-state passive Q-switched Nd:YVO4 laser system. Q-switching operation is very common and important for diode-pumped solid-state lasers. And in recent years, Q-switched lasers have been used in many fields, such as nonlinear optics, range finding, medicine, and micromachining, etc. In this experiment, we use GaAs wafer as an important element for passive Q-switching. The GaAs wafer, which works as an saturable absorber, was used as the Q-switch in the laser system. Moreover, GaAs wafer also acts as an anti-resonant Fabry-Perot resonantor, so we use it as an output coupler. Its reflectance is 73.5%, and its transmittance is 26.5%. We use two gain media with different lengths. One is 6 mm, and the other is 3 mm. The results of this experiment are as follows: The cavity length is adjustable from 8 mm to 17 mm;the shotest pulse width is 7 ns;its photon lifetime is about 0.33 ns;the highest peak power is 314 W;the highest repetition rate is about 1.7 MHz;its pulse energy is up to 2.2 μJ.
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蒲念文 |
author_facet |
蒲念文 Lin, Yao-chun 林耀群 |
author |
Lin, Yao-chun 林耀群 |
spellingShingle |
Lin, Yao-chun 林耀群 Use of GaAs as a passive Q-switch as well as an output coupler for diode-pumped Nd:YVO4 lasers |
author_sort |
Lin, Yao-chun |
title |
Use of GaAs as a passive Q-switch as well as an output coupler for diode-pumped Nd:YVO4 lasers |
title_short |
Use of GaAs as a passive Q-switch as well as an output coupler for diode-pumped Nd:YVO4 lasers |
title_full |
Use of GaAs as a passive Q-switch as well as an output coupler for diode-pumped Nd:YVO4 lasers |
title_fullStr |
Use of GaAs as a passive Q-switch as well as an output coupler for diode-pumped Nd:YVO4 lasers |
title_full_unstemmed |
Use of GaAs as a passive Q-switch as well as an output coupler for diode-pumped Nd:YVO4 lasers |
title_sort |
use of gaas as a passive q-switch as well as an output coupler for diode-pumped nd:yvo4 lasers |
publishDate |
2005 |
url |
http://ndltd.ncl.edu.tw/handle/93917818462083697801 |
work_keys_str_mv |
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