| Project/Area Number |
07832021
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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 | 時限 |
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| Research Field |
非線形科学
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| Research Institution | FACULTY OF SCIENCE AND TECHNOLOGY |
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Principal Investigator |
ABE Hirotada FACULTY OF SCIENCE AND TECHNOLOGY,DEPARTMENT OF ELECTRONICS AND INFORMATICS,PROFESSOR, 理工学部, 教授 (30026140)
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| Co-Investigator(Kenkyū-buntansha) |
TAKAHASHI Daisuke FACULTY OF SCIENCE AND TECHNOLOGY,DEPARTMENT OF ELECTRONICS AND INFORMATICS,ASSO, 理工学部, 助教授 (50188025)
松下平 淳太 龍谷大学, 理工学部, 講師 (60231594)
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| Project Period (FY) |
1995 – 1996
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| Project Status |
Completed (Fiscal Year 1996)
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| Budget Amount *help |
¥2,300,000 (Direct Cost: ¥2,300,000)
Fiscal Year 1996: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1995: ¥1,700,000 (Direct Cost: ¥1,700,000)
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| Keywords | OPTICAL SOLITON / NONLINEAR LORENTZ COMPUTATIONAL MODEL / SIMULATION |
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| Research Abstract |
In 1993 fiscal year, the head investigator started this study during stay at Princeton Plasma Physics laboratory in Princeton University (PPPL), USA.Applicability and potential of the the Nonlinear Lortentz Computational Model (NLCM) have been studeid and extended toinclude another effects.
1. The dark soliton is an NRZ optical pulse, contrary to the bright soliton which is the forerunner candidate of the soliton commnucation and is a RZ optical pulse. As a natural development of the traditional optical NRZ communication technique, the application of the dark soliton to the fiber transmitting is simulated by using the NLCM.The head investigator has reported the preliminary results in the oral session of the Japanese Society of Elctronics, Information, and Communucation. The title is "Computer Simulation of the Ultrashort Dark Soliton by the NLCM method (C-195)".
2. The potentiality and the limit are presumed to be 10 Tbit/s by the computer simulation using the NLCM method. The abstract of the result is submitted to the Optics Letters. The title is "Potential capability of the dark soliton communication system".
3. The simulation model is extended to the quasi 2-dimensional model. In this new model, two one-dimensional codes are synchronously run and the boundary condisions are solved as the simultaneous equation.
4. The Y-splitting optical circuits are simulated by useing the quasi 2-dimensional model. By combining the pi/2 phase shifter with the quasi 2-dimensional model, the action of the optical switching hase been simulated.
5. The effects of the stimulated Raman scattering has been incorporated to the NLCM,assuming that the ion is movile by the electromagnetic wave. The simplest model is adopted, but the Stokes scattering wave has been observed in the simulation.
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