Self-routing optical circuits for multi-level optical communication and WDM systems

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K06043
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Electron device/Electronic equipment
• Research Institution: Fukuoka Institute of Technology
• Principal Investigator: Maeda Hiroshi 福岡工業大学, 情報工学部, 教授 (50264073)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 光信号処理 / 通信容量 / 非線形誘電体 / フォトニック結晶 / 周期構造 / 多値振幅通信 / WDM

Outline of Final Research Achievements

Extension of optical fiber channel capacity is required for increase of data traffic in the Internet. For the purpose, the researcher proposed self-routing optical circuits by combination of multi-level signal amplitude and wavelength division multiplexing (WDM) systems. The circuits include nonlinear refractive index to respond with high or low signal amplitude to show different amount of index change. As fundamental wave-guiding structure and optical circuit component, photonic crystal structure with periodicity is adopted to achieve smaller circuit size compared with conventional slab waveguide. The design parameters are obtained by numerical computation and experiment in microwave scaled model.

Free Research Field

光通信工学