Multi-mode cavities for high-efficiency nonlinear wavelength conversion formed with overlap optimization

US10353269B2 · kind B2 · utility

Assignees

• THE TRUSTEES OF PRINCETON UNIVERSITY · US
• President and Fellows of Harvard College · US
• Massachusetts Institute of Technology · US

Inventors

• Alejandro Rodriguez · Princeton, US
• Zin Lin · Somerville, US
• Steven G. Johnson · McLeansboro, US
• Marko Loncar · Somerville, US
• Xiangdong Liang · Arlington, US

Key dates

• Filing date: Feb 27, 2017
• Grant date: Jul 16, 2019
• Expiry date: Feb 27, 2037

Classification

• Technology area (CPC G): Physics
• CPC primary: G02F1/3548
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A fully confined dual frequency optical resonator configured for optical coupling to light having a first frequency ω1. The dual frequency optical resonator includes a plurality of alternating layer pairs configured in a grating configuration, each layer pair having a first layer formed of a first material and a second layer formed of a second material, the first material and second material being different materials. Each layer having a thickness different than a thickness of an adjacent layer to provide thereby aperiodic layer pairs, the thicknesses of adjacent layers being selected to create, via wave interference with each layer, optical resonances at the first frequency ω1 and a second frequency ω2 which is a harmonic of ω1, and to ensure a maximum spatial overlap between confined modes over the materials such that an overall quality factor Q of at least 1000 is achieved.