Patent · US Expired

Methods of altering the resonance of waveguide micro-resonators

US7092590B2 · kind B2 · utility

6Cited by
15References
14Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 21, 2001
Grant dateAug 15, 2006
Priority date—
Expiry dateSep 21, 2021

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02F2203/15
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

Methods of tuning, switching or modulating, or, in general, changing the resonance of waveguide micro-resonators. Changes in the resonance can be brought about, permanently or temporarily, by changing the size of the micro-resonator with precision, by changing the local physical structure of the device or by changing the effective and group indices of refraction of the mode in the micro-resonator. Further changing the asymmetry of the index profile around a waveguide can alter the birefringence of the waveguide and allows one to control the polarization in the waveguide. This change in index profile may be used to change the polarization dependence or birefringence of the resonators.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.