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:
Jan. 12, 2021
Filed:
May. 15, 2018
Politecnico Di Milano, Milan, IT;
Andrea Melloni, Milan, IT;
Daniele Melati, Milan, IT;
POLITECNICO DI MILANO, Milan, IT;
Abstract
An optical delay method, and related system, includes propagating an optical signal along an optical delay device () with a first stage () having a variable input coupler () and a delay element. An intermediate stage () has a variable intermediate coupler () and a delay element. An output stage () includes a variable output coupler (). The method sets a coupling ratio of the input () and output couplers () equal to a value K1 selected among a plurality of at least three values. A coupling ratio of the intermediate coupler () is set equal to a value K2, wherein K1=sin(θ) & K2=sin(A*θ) with θ greater than or equal to zero and less than or equal to π/2 and A greater than or equal to 1.5 and less than or equal to 2.5.