| Project/Area Number |
22560035
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Applied optics/Quantum optical engineering
|
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| Research Institution | Niigata University |
|---|
Principal Investigator |
SATO Takashi 新潟大学, 自然科学系, 教授 (10143752)
|
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| Co-Investigator(Kenkyū-buntansha) |
OHKAWA Masashi 新潟大学, 自然科学系, 教授 (90213644)
OHDAIRA Yasuo 新潟大学, 自然科学系, 准教授 (10361891)
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|---|
| Project Period (FY) |
2010 – 2012
|
| Project Status |
Completed (Fiscal Year 2012)
|
| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2011: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2010: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | レーザ / VCSEL / 周波数雑音 / 物理乱数生成 / 面発光型半導体レーザ / 半導体レーザ / 物理乱数 |
|---|
| Research Abstract |
In the present work, we tested the oscillation wavelength shift of a vertical-cavity surface-emitting laser (VCSEL) in a magnetic field, because we expected that the VCSEL would show a shorter wavelength side shift. We also demonstrated a novel method of generating physical random numbers, by means of a diode laser that has an extremely wide-band frequency-noise profile. Fluctuations in the laser frequency affect the intensity of the light transmitted through the optical frequency discriminator, detected thereafter, as random fluctuations. This allows us to simultaneously generate 8 random bit streams, due to the parallel processing of 8-digit binary numbers sampled by an 8-bit analog-to-digital converter (ADC). Finally, we generated physical random numbers at a rate of 40Gb/s.
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