2011 Fiscal Year Final Research Report
Development of low cost efficient ultrashort pulse laser system
| Project/Area Number |
21604002
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Quantum beam science
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| Research Institution | Ibaraki University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
SONE Hiroyasu 北見工業大学, 工学部, 助教 (00333667)
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| Project Period (FY) |
2009 – 2011
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| Keywords | イッテルビウム / セラミック / 超短パルス / フェムト秒 / レーザー |
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| Research Abstract |
A diode-pumped passively mode-locked Yb : YAG ceramic laser was demonstrated. We successfully achieved passive mode locking. To the best of our knowledge, this is the first mode-locked Yb : YAG ceramic laser, and the shortest pulse for diode-pumped ceramic lasers without Kerr lens mode locking was obtained. However, the average output power of laser was low as 20 mW. Furthermore we experimentally demonstrated a dual-wavelength independently mode-locked Yb : YAG ceramic laser in a single cavity. Next, we obtain the average power of 3.9 W by replaseing a prism pair by dispersion compensation mirror. To our knowledge it is the highest power. Finally, the ultrashort highpower laser pulse was propagated in a low-dispersion fiber propagation and super continuum was generated.
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