The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 10, 2009
Filed:
Apr. 09, 2008
Michael R. Watts, Albuquerque, NM (US);
Douglas C. Trotter, Albuquerque, NM (US);
Ralph W. Young, Albuquerque, NM (US);
Gregory N. Nielson, Albuquerque, NM (US);
Michael R. Watts, Albuquerque, NM (US);
Douglas C. Trotter, Albuquerque, NM (US);
Ralph W. Young, Albuquerque, NM (US);
Gregory N. Nielson, Albuquerque, NM (US);
Sandia Corporation, Albaquerque, NM (US);
Abstract
Optical ring resonator devices are disclosed that can be used for optical filtering, modulation or switching, or for use as photodetectors or sensors. These devices can be formed as microdisk ring resonators, or as open-ring resonators with an optical waveguide having a width that varies adiabatically. Electrical and mechanical connections to the open-ring resonators are made near a maximum width of the optical waveguide to minimize losses and thereby provide a high resonator Q. The ring resonators can be tuned using an integral electrical heater, or an integral semiconductor junction.