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. 19, 1991
Filed:
Jun. 06, 1990
Applicant:
Inventors:
Christopher J Groves-Kirby, Northampton, GB;
Douglas C Reid, Warwickshire, GB;
Assignee:
Plessey Research Caswell Limited, Ilford, GB;
Primary Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350 9615 ; 350 9616 ;
Abstract
The optical fibre lattice signal processor comprises at least two coupling devices through which two optical fibres pass in a manner permitting optical coupling therebetween. The optical coupling devices are arranged in parallel with respect to each other and each fibre experiences a 180.degree. turn between the couplers. Recursive and non-recursive arrangements are provided for, together with equal and arbitrary delays.