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:
Oct. 12, 1993
Filed:
Aug. 04, 1992
Applicant:
Inventors:
Stanley M Klainer, Henderson, NV (US);
Devinder P Saini, Henderson, NV (US);
Assignee:
FCI-FiberChem, Inc., Las Vegas, NV (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; G02B / ;
U.S. Cl.
CPC ...
356133 ; 385 12 ; 385123 ;
Abstract
In a refractive index type optical sensor having a thin film metal clad on a waveguide to control leakage of light as a function of refractive index, light leakage occurs in the region where a discontinuity in refractive index occurs. A discontinuous clad with short, closely spaced segments maximizes light leakage and sensitivity over the length of the sensing region. Multiple sensing regions can be formed on a single waveguide.