Optical Subcarrier Processing for Nyquist SCM Signals using Four-Wave Mixing with Coherent Pumps

KAKEN

About This Project

Japan Grant Number
JP18K04152 (JGN)
Funding Program
Grants-in-Aid for Scientific Research
Funding Organization
Japan Society for the Promotion of Science

Kakenhi Information

Project/Area Number
18K04152
Research Category
Grant-in-Aid for Scientific Research (C)
Allocation Type
  • Multi-year Fund
Review Section / Research Field
  • Basic Section 21020:Communication and network engineering-related
Research Institution
  • The University of Aizu
  • Tokai University
Project Period (FY)
2018-04-01 〜 2022-03-31
Project Status
Completed
Budget Amount*help
4,420,000 Yen (Direct Cost: 3,400,000 Yen Indirect Cost: 1,020,000 Yen)

Research Abstract

The main research output of this project could be summarized below. (a) subcarrier multicast and data aggregation with coherent detections; (b) synthesis of high-order quadrature-amplitude modulation (QAM) subcarrier from input low-order QAM twin-SSBs by coherent superposition with direct detection. In addition, a specific algorithm named hierarchical blind phase search was proposed and developed to cope with the imperfect phase rotation in the coherent superposition process. In both cases, error-free operations and clear constellations were experimentally demonstrated for the synthesized high-order subcarrier with either coherent or direct detection, verifying the proposed scheme.

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