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:
Jun. 10, 2003
Filed:
Nov. 28, 2000
Applicant:
Inventors:
Gregory G. Cappiello, Windham, NH (US);
Michael Sussman, Winchester, MA (US);
Mikhail N. Sokolskiy, St. Petersburg, RU;
Assignee:
Digital Lightwave, Inc., North Chelmsford, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/28 ;
U.S. Cl.
CPC ...
G02B 6/28 ;
Abstract
An optical performance monitoring device and corresponding diffraction grating are disclosed for utilization within a fiber optic communications network. The diffraction grating includes a substrate and reflective material adjacent the substrate, wherein the diffraction grating is substantially polarization insensitive over a wavelength range of approximately 30 nm.