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. 26, 1991
Filed:
Aug. 10, 1990
Applicant:
Inventors:
Peter K Bachmann, Aachen, DE;
Giok D Khoe, Eindhoven, NL;
Cathal J Mahon, Copenhagen, DK;
Hans-Jurgen Lydtin, Stolberg, DE;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; C03C / ;
U.S. Cl.
CPC ...
385127 ; 385 11 ; 65-311 ; 65-312 ;
Abstract
An optical fibre of the single-mode type in which light travels in one polarization mode is formed from a single-mode quadruple-clad fibre, in which the dimension of the light-transmitting part of the fibre in a first direction perpendicular to the axis of the fibre differs from the dimension of the light-transmitting part in a second direction perpendicular to the axis of the fibre and the first direction.