Nonlinear optics in coupled resonators

2017 Fiscal Year Final Research Report

• Project/Area Number: 16K13702
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Optical engineering, Photon science
• Research Institution: Keio University
• Principal Investigator: Tanabe Takasumi 慶應義塾大学, 理工学部(矢上), 准教授 (40393805)
• Project Period (FY): 2016-04-01 – 2018-03-31
• Keywords: フォトニックナノ構造 / 微小光共振器 / フォトニック結晶

Outline of Final Research Achievements

A microcavity can confine light in a tiny space. We build coupled optical resonator system to demonstrate various functional operations. First, we constructed a coupled system using ultrahigh-Q silica toroid microcavities, and demonstrated photonic memories with 20-ns trapping time, or Brillouin lasing having high frequency accuracy.
Next we tried to couple photonic crystals with tapered nanofiber and demonstrated dynamic formation of resonators. In addition, we achieved very high coupling of light to an optical fiber by using this setup.
Finally, we demonstrated the coupling between silica toroid microcavity with photonic crystal slab.

Free Research Field

光エレクトロニクス