期刊
APPLIED PHYSICS EXPRESS
卷 6, 期 3, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.7567/APEX.6.032703
关键词
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资金
- Ministry of Education, Culture, Sports, Science and Technology, Japan for the Photon Frontier Network Program
- Grants-in-Aid for Scientific Research [24656055] Funding Source: KAKEN
We experimentally prove that a Cr4+-doped Y3Al5O12 (YAG) crystal exhibits saturable absorption in visible wavelengths at 639, 607, and 521 nm. From z-scan measurements, the saturation energies measured using laser pulse widths of 25 and 66 ns at 639 nm are estimated to similar to 11: 5 and 21.2 mJ/cm(2), respectively. Therefore, the absorption response time will be shorter than these pulse widths. Using the Cr4+:YAG saturable absorber, we demonstrate for the first time, to the best of our knowledge, the passive Q-switched and the Q-switched mode-lock Pr3+-doped LiYF4 (YLF) lasers at 639 nm pumped by an InGaN diode laser. (C) 2013 The Japan Society of Applied Physics
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