Optical Discrete Time-Frequency Transform for Ultrafast Communications

KAKEN

About This Project

Japan Grant Number
JP18H03788 (JGN)
Funding Program
Grants-in-Aid for Scientific Research
Funding Organization
Japan Society for the Promotion of Science

Kakenhi Information

Project/Area Number
18H03788
Research Category
Grant-in-Aid for Scientific Research (A)
Allocation Type
  • Single-year Grants
Review Section / Research Field
  • Medium-sized Section 21:Electrical and electronic engineering and related fields
Research Institution
  • Tokyo Metropolitan University
Project Period (FY)
2018-04-01 〜 2023-03-31
Project Status
Completed
Budget Amount*help
43,160,000 Yen (Direct Cost: 33,200,000 Yen Indirect Cost: 9,960,000 Yen)

Research Abstract

We have demonstrated the proposed optical time-frequency discrete orthogonal transformation technology and confirmed its capability of ultra-high-speed transmission and signal processing for high-bandwidth optical communications. We have demonstrated ultrafast and ultrabroadband optical modulation, demodulation, and coherent signal processing capability without relying on all-optical signal processing technology. Our work has opened up new possibilities for ultrafast optical communications beyond the THz level. We have demonstrated the feasibility of coherent optical transmission and reception at speeds ranging from 100 to several 100 Gb/s, a significant step towards practical implementation. We have also explored the possibility of applying this technology to optical communication networks, and succeeded in demonstrating the principle of ultra-high optical signal processing functions that are essential for ultra-high optical communications, such as optical network node processing.

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