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:
Jul. 04, 2000
Filed:
Dec. 16, 1997
Applicant:
Inventors:
Sureshchandra Mishrilal Ohja, Harlow, GB;
David John Moule, Old Harlow, GB;
Colin Brian Rogers, Bishops Stortford, GB;
Assignee:
Northern Telecom Limited, Quebec, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
438710 ; 438710 ; 438715 ; 438717 ; 438723 ; 156643 ; 156647 ;
Abstract
The present invention is an improved method of pigtailing of high-density Wavelength Division Multiplex (WDM) components, achieved by etching silicon V-grooves for locating the fibres after completion of the PLC device fabrication processes. This avoids the need for etching or pre-patterning of the V-grooves on substrates before device fabrication, and hence avoids any of the waveguide to fibre alignment problems that have been found in the methods of the prior art.