| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2014: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Outline of Final Research Achievements |
We have developed a technique called multi-wavelength electric field heterodyne detection on Fourier space that can measure the asymmetrical ultrafast waveforms with high sensitivity. The relative phase between the adjacent peaks of the optical comb are detected by using the reference optical comb. A prototype and operation of the Fourier space light source system was carried out along the following items.
1. The 200GHz optical frequency comb of 32 waves was generated with the seed light source of 25GHz optical frequency comb (256 waves).
2. The pulse train of the optical comb, ie, the electric field spectrum of spectral region was measured in a time of the waveform changing by the digitizer. And it succeeded in reproducing by measuring the waveform within a repetition time by inverse Fourier transformation of the measured light field spectrum.
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