| Project/Area Number |
24656222
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Electron device/Electronic equipment
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| Research Institution | Tohoku University |
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Principal Investigator |
YOSHIDA Masato 東北大学, 電気通信研究所, 准教授 (10333890)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | 光デバイス・光回路 / モード同期レーザ / ハイブリッドモード同期 / 可飽和吸収体 / 光源技術 / 高性能レーザ |
|---|
| Research Abstract |
We developed a hybrid mode-locked laser with a saturable absorber and an optical modulator to generate a femtosecond pulse with a GHz repetition rate. We studied carbon nanotube, graphene, and semiconductor devices as a saturable absorber. Then we inserted these devices into an active mode- locked laser, in which the dispersion and the nonlinearity were optimized for soliton pulse generation. As a result, we have successfully generated a 500 fs pulse with a 10 GHz repetition rate.
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