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:
Apr. 07, 2009
Filed:
Mar. 07, 2007
Stephen J. Mihailov, Kanata, CA;
Christopher W. Smelser, Ottawa, CA;
Dan Grobnic, Ottawa, CA;
Robert B. Walker, Spencerville, CA;
Ping LU, Ottawa, CA;
Huimin Ding, Nepean, CA;
Gino Cuglietta, Kanata, CA;
Xiaoli Dai, Ottawa, CA;
Stephen J. Mihailov, Kanata, CA;
Christopher W. Smelser, Ottawa, CA;
Dan Grobnic, Ottawa, CA;
Robert B. Walker, Spencerville, CA;
Ping Lu, Ottawa, CA;
Huimin Ding, Nepean, CA;
Gino Cuglietta, Kanata, CA;
Xiaoli Dai, Ottawa, CA;
Abstract
A method of increasing the refractive index in a photosensitive glass is disclosed so as to induce an refractive index change of at least 10within a region of the glass. The method includes the step of providing a hydrogen or deuterium loaded doped glass material wherein a dopant within the glass is photosensitive to infrared radiation in the presence of hydrogen or deuterium. The hydrogen or deuterium loaded doped glass is subsequently irradiated with femtosecond pulses of infrared light having an intensity of at least 10W/cmand less than 5×10W/cm.