| Project/Area Number |
06452128
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| Research Category |
Grant-in-Aid for General Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Applied optics/Quantum optical engineering
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| Research Institution | University of Tokyo |
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Principal Investigator |
KAMIYA Takeshi The University of Tokyo, Department of Electronic Engineering, Professor, 大学院・工学系研究科, 教授 (70010791)
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| Co-Investigator(Kenkyū-buntansha) |
TSUCHIYA Masahiro The University of Tokyo, Department of Electronic Engineering, Associate profess, 大学院・工学系研究科, 助教授 (50183869)
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| Project Period (FY) |
1994 – 1995
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| Project Status |
Completed (Fiscal Year 1995)
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| Budget Amount *help |
¥7,200,000 (Direct Cost: ¥7,200,000)
Fiscal Year 1995: ¥2,700,000 (Direct Cost: ¥2,700,000)
Fiscal Year 1994: ¥4,500,000 (Direct Cost: ¥4,500,000)
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| Keywords | Soliton / Semiconductor / Optical Fiber / Pulse / Optical measurement / Electro-Optic Sampling / Compression / 半導体レーザー / 光パルス / チャープ / パルス圧縮 / 電気計測 / 超高速光学 |
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| Research Abstract |
To realize a compact and high repetition-rate ultrashort light pulse source a trial assembly was made by combining gain-switched semiconductor laser, fiber amplifier and dispersion-shifted optical fiber. The shortest pulse width of 185fs is reported. Most recently though unpublished a pulse width less than 100fs is recorded, The world shortest value. To potimize the operation condition of the semiconductor laser, a chracterization procedure to evaluate dynamic chirp parameters is developed. The method is based on the experimental data of spectrally resolved streak camera image and a self-consistent fitting algorithm using the short time Fourier transform (STFT) procedures. The extracted parameters successfully predict the optimum soliton compression conditions. The pulse source is applied to an electro-opticsampling apparatus for high speed electrical measurements.
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