Compensation of signal distortion including nonlinear effects using optical correlation receiver

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K18068
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Communication/Network engineering
• Research Institution: Osaka Prefecture University
• Principal Investigator: Miyoshi Yuji 大阪府立大学, 工学(系)研究科(研究院), 助教 (00582389)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 光通信工学 / 光信号処理 / 光時分割多重 / 相関受信器

Outline of Final Research Achievements

We proposed and investigated the following contents to achieve high signal quality for the distorted high-speed signal detection.
(1)We investigated and clarified the effect of the cut-off frequency and number of quantization bits of analog-to-digital converters on the signal quality using the impulse response of a correlation receiver. (2)We proposed a wavelength-dispersion equalizing scheme that counteracts the signal degradation caused by residual dispersion. To counteract the signal degradation, this scheme uses optical correlation receivers and a distorted reference signal. (3)We proposed a transmission scheme for suppressing signal degradation due to optical nonlinear effects. To suppress inter-symbol interference, this scheme uses optical signals with short waveforms and excess bandwidths.

Free Research Field

光通信工学