| Budget Amount *help |
¥16,640,000 (Direct Cost: ¥12,800,000、Indirect Cost: ¥3,840,000)
Fiscal Year 2017: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2016: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000)
Fiscal Year 2015: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000)
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| Outline of Final Research Achievements |
We fabricated high-quality GaAs multi-quantum-well and double-hetero-structure semiconductor lasers, made strong impulsive optical pumping by using mode-locked Ti sapphire lasers and mode-locked fiber lasers. Pulse dynamics of their output short pulse was measured via a streak camera, photo-diodes, and an auto-correlator. We obtained fs pulses in the short wavelength part of the output pulses under extremely high pumping, found the importance of gain amplitude instead of quantum confinement, and successfully formulated them with our 2-band-semiconductor rate-equation laser theory. a
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