| Presentation | 2014-05-23 Development of Ultrashort Pulsed Laser at 1μm for Ultrafast Spectroscopy in Visible Range Yuhei CHIBA, Hideyuki TAKADA, Kenji TORIZUKA, Kazuhiko MISAWA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Today, in the field of ultrafast spectroscopy, Ti:Sapphire laser is mainly used as ultrashort pulsed light source. However, in the case of utilizing this laser, subject molecule need to absorb near-infrared light. Generally, visible and near-infrared light pulses outside the range between 700～900 nm is generated by OPA and OPO, in which both high pulse repetition and broadband spectrum cannot be simultaneously fulfilled. Here we report a femtosecond light source around 1 urn in the combination of a mode-locked Yb:KYW oscillator and Yb:fiber amplifier. The seed spectrum was broadened to 200-nm bandwidth using a photonic crystal fiber. We successfully obtained 150 nJ, 3 MHz, 1020～1100 nm at 1 μm by fiber amplification which employs gain narrowing compensator. Amplified pulses were compressed down to 200-fs duration using a grating pair, which was still larger than the transform limited duration of 50 fs. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Ultrashort Pulsed Laser / Spectrum Broadening / Photonic Crystal Fiber / Gain Narrowing Compensation |
| Paper # | LQE2014-10 |
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| Conference Information | |
| Committee | LQE |
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| Conference Date | 2014/5/15(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Lasers and Quantum Electronics (LQE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Development of Ultrashort Pulsed Laser at 1μm for Ultrafast Spectroscopy in Visible Range |
| Sub Title (in English) | |
| Keyword(1) | Ultrashort Pulsed Laser |
| Keyword(2) | Spectrum Broadening |
| Keyword(3) | Photonic Crystal Fiber |
| Keyword(4) | Gain Narrowing Compensation |
| 1st Author's Name | Yuhei CHIBA |
| 1st Author's Affiliation | Faculty of Engineering, First University, Tokyo University of Agriculture and Technology() |
| 2nd Author's Name | Hideyuki TAKADA |
| 2nd Author's Affiliation | National Institute of Advanced Industrial Science and Technology(AIST) |
| 3rd Author's Name | Kenji TORIZUKA |
| 3rd Author's Affiliation | National Institute of Advanced Industrial Science and Technology(AIST) |
| 4th Author's Name | Kazuhiko MISAWA |
| 4th Author's Affiliation | Faculty of Engineering, First University, Tokyo University of Agriculture and Technology |
| Date | 2014-05-23 |
| Paper # | LQE2014-10 |
| Volume (vol) | vol.114 |
| Number (no) | 46 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |