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. 09, 1993
Filed:
Oct. 21, 1991
Applicant:
Inventors:
Cheng-ko J Sun, Worthington, OH (US);
Shin Sumida, Columbus, OH (US);
Tadashi Miyashita, Upper Arlington, OH (US);
Assignee:
Photonic Integration Research, Inc., Columbus, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
385130 ; 385142 ;
Abstract
An optical waveguide is disclosed which comprises a substrate of A12O3 and a silica glass film of SiO2 applied thereon. The glass film has between 35-90 mol % SiO2. The device may be used in conjunction with electronics on the same substrate to form opto-electronic interconnections. The invention may also be used to apply a thin film glass glaze to a ceramic substrate.