2016 Fiscal Year Final Research Report
Power Efficient Optical Serial-to-Parallel Conversion using Linear Nyquist pulse generation and Time-Lens Technique
| Project/Area Number |
15K13989
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Communication/Network engineering
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| Research Institution | Osaka University |
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Principal Investigator |
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| Project Period (FY) |
2015-04-01 – 2017-03-31
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| Keywords | 光信号処理 / シリアルパラレル変換 |
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| Outline of Final Research Achievements |
Power efficient optical serial-to-parallel conversion is investigated as an indispensable frontend subsystem of ultra-wide band systems for bandwidth matching. Here, we pursue a linear technique based on fractional Orthogonal Frequency Division Multiplexing (OFDM) scheme. A fractional OFDM can mediate between Nyquist Optical Time Division Multiplexing (N-OTDM) and OFDM without any nonlinear signal processing and it is expected to incorporate both benefits of the densest serial and parallel features of N-OTDM and OFDM as well as power efficiency of a linear technique. The preliminary operation of serial-to-parallel conversion is successfully verified so that a 10 GHz sine wave serial signal could be optically sampled by triple Nyquist pulses and be converted to three parallel intensity modulated signals at three Fr-OFDM channels under the condition of root mean squared error below 5%.
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| Free Research Field |
光信号処理
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