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:
Feb. 01, 2005
Filed:
Feb. 08, 2002
Applicants:
Francois Gonthier, Montreal, CA;
Francois Seguin, Montreal, CA;
Nicolas Godbout, Montreal, CA;
Alain Villeneuve, Montreal, CA;
Inventors:
Francois Gonthier, Montreal, CA;
Francois Seguin, Montreal, CA;
Nicolas Godbout, Montreal, CA;
Alain Villeneuve, Montreal, CA;
Assignee:
ITF Optical Technologies Inc., Montreal, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F 101 ;
U.S. Cl.
CPC ...
Abstract
The invention provides an all-fiber Mach-Zehnder interferometer in which the composition of one of the arms, which connect the couplers, or of a segment of such arm, is doped with dopants, such as GeO, PO, BOand F. The doping is adjusted to obtain a desired thermal dependence of the interferometer within a given temperature range. The segments can further be tapered with an adiabatic taper.