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:
Jul. 04, 2006
Filed:
Jul. 16, 2003
Steven G. Johnson, Cambridge, MA (US);
Mihai Ibanescu, Cambridge, MA (US);
Ori Weisberg, Cambridge, MA (US);
Yoel Fink, Cambridge, MA (US);
John D. Joannopoulos, Belmont, MA (US);
Maksim Skorobogatiy, Brighton, MA (US);
Torkel Engeness, Somerville, MA (US);
Marin Soljacic, Somerville, MA (US);
Steven A. Jacobs, Needham, MA (US);
Steven G. Johnson, Cambridge, MA (US);
Mihai Ibanescu, Cambridge, MA (US);
Ori Weisberg, Cambridge, MA (US);
Yoel Fink, Cambridge, MA (US);
John D. Joannopoulos, Belmont, MA (US);
Maksim Skorobogatiy, Brighton, MA (US);
Torkel Engeness, Somerville, MA (US);
Marin Soljacic, Somerville, MA (US);
Steven A. Jacobs, Needham, MA (US);
OmniGuide Communications, Cambridge, MA (US);
Abstract
An optical waveguide including: a dielectric core region extending along a waveguide axis; and a dielectric confinement region surrounding the core about the waveguide axis, the confinement region comprising a photonic crystal structure having a photonic band gap, wherein during operation the confinement region guides EM radiation in at least a first range of frequencies to propagate along the waveguide axis, wherein the core has an average refractive index smaller than about 1.3 for a frequency in the first range of frequencies, and wherein the core a diameter in a range between about 4λ and 80λ, wherein λ is a wavelength corresponding to a central frequency in the first frequency range.