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, 2004
Filed:
Jun. 27, 2002
Applicant:
Inventors:
Assignee:
Pirelli Cavi E Sistemi S.p.A., Milano, IT;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 6/20 ;
U.S. Cl.
CPC ...
G02B 6/20 ;
Abstract
Unit ( ) comprising a portion of holey optical fibre ( ) having a length Lc comprising a core region ( ) and a cladding region ( ), said cladding region ( ) comprising, in turn, a plurality of holes passing through it longitudinally, said holes having a respective diameter and being spaced, two by two, according to a respective pitch, said unit comprising also a temperature adjusting device ( ) for bringing and maintaining the holey optical fibre ( ) at temperature values T selectable in a predetermined interval of temperatures Tx-Ty.