| Project/Area Number |
15K13989
|
|---|
| Research Category |
Grant-in-Aid for Challenging Exploratory Research
|
| Allocation Type | Multi-year Fund |
|---|
| Research Field |
Communication/Network engineering
|
|---|
| Research Institution | Osaka University |
|---|
Principal Investigator |
|
|---|
| Project Period (FY) |
2015-04-01 – 2017-03-31
|
| Project Status |
Completed (Fiscal Year 2016)
|
| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2016: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
|
|---|
| Keywords | 光信号処理 / シリアルパラレル変換 / シリアル－パラレル変換 |
|---|
| 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%.
|
