Development of Semiconductor Photonic Integrated Circuits Utilizing the Polarization State of Light and Application to Optical Communication

2017 Fiscal Year Final Research Report

• Project/Area Number: 15H03985
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Electron device/Electronic equipment
• Research Institution: The University of Tokyo
• Principal Investigator: Tanemura Takuo 東京大学, 大学院工学系研究科(工学部), 准教授 (90447425)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 光集積回路 / 偏波

Outline of Final Research Achievements

In this project, we aimed to develop novel devices to manipulate and detect the polarization state of light inside a semiconductor photonic integrated circuit. We first proposed and experimentally demonstrated that compact and efficient polarization modulators and polarization analyzers can be realized by monolithically integrating the half-ridge polarization converters with quantum-well-based modulators and detectors. By using developed devices, we also demonstrated high-speed decoding of multi-level Stokes-vector modulated signals. The developed technologies should have diverse applications including optical communication, sensing, and quantum computing.

Free Research Field

光エレクトロニクス