Foundation of Space Division Multiplex Technology for Extremely Enhancing Optical Transmission Capacity

2015 Fiscal Year Final Research Report

• Project/Area Number: 25420309
• 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: Hokkaido University
• Principal Investigator: Saitoh Kunimasa 北海道大学, 情報科学研究科, 教授 (20333627)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 空間分割多重 / マルチコアファイバ / 数モードファイバ / マルチモードファイバ

Outline of Final Research Achievements

In this study, we investigated space division multiplexing technology for extremely enhancing optical transmission capacity by using multicore fiber technology and mode division multiplexing technology. For multicore fiber design, a theory for accurately estimating inter-core crosstalk in few-mode multicore fibers has been developed. Through detailed numerical simulations, it was found that the few-mode multicore fibers with a spatial multiplicity of 20 times larger than that of conventional single-core single-mode fibers can be achieved. In addition, for realizing mode division multiplexing, a planar lightwave circuit (PLC) based LP11 mode rotator was proposed in order to excite LP11b mode in the same plane, and the PLC-type 2LP-mode (3 mode) multiplexer/demultiplexer with uniform waveguide height has been developed.

Free Research Field

光通信工学