| Project/Area Number |
22656020
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
|---|
| Research Field |
Applied optics/Quantum optical engineering
|
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| Research Institution | Keio University |
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Principal Investigator |
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| Project Period (FY) |
2010 – 2011
|
| Project Status |
Completed (Fiscal Year 2011)
|
| Budget Amount *help |
¥3,590,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥390,000)
Fiscal Year 2011: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2010: ¥1,900,000 (Direct Cost: ¥1,900,000)
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| Keywords | 可視域レーザ / プラセオジムイオン / 過飽和吸収体 / モード同期レーザ / 波長可変レーザ / ファイバーレーザ |
|---|
| Research Abstract |
Development of a visible mode-locked laser utilizing Pr^<3+>-doped fluoride glass material that enables us continuous laser wavelength tuning in the visible region was aimed in this study. For passive modelocking, we investigated some potential candidates for saturable absorber in the visible region. We successfully proved that a Cr^<4+>: YAG crystal, a ZnSeS colloidally colored glass, and a semiconductor multi-layer mirror can exhibit saturable absorption around639nm. We demonstrated passive Q-switching at639and607nm for the first time.
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