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:
May. 05, 2020
Filed:
Feb. 24, 2017
Oxford University Innovation Limited, Oxford, GB;
William Clements, Oxford, GB;
Peter Humphreys, Oxford, GB;
Benjamin Metcalf, Oxford, GB;
Steven Kolthammer, Oxford, GB;
Ian Walmsley, Oxford, GB;
OXFORD UNIVERSITY INNOVATION LIMITED, Oxford, GB;
Abstract
A universal interferometer () for coupling modes of electromagnetic radiation according to a transformation has N inputs and N outputs for inputting and outputting N modes of electromagnetic radiation into and from the interferometer. Waveguides () pass through the interferometer to connect the N inputs to the N outputs and to carry the N modes of electromagnetic radiation. The waveguides provide crossing points between pairs of waveguides and a reconfigurable beam splitter () implements a reconfigurable reflectivity and a reconfigurable phase shift at each crossing point. The waveguides and crossing points are arranged such that each of the N modes of electromagnetic radiation is capable of coupling with each of the other modes of electromagnetic radiation at respective reconfigurable beam splitters. The couplings between modes at the reconfigurable beam splitters are configured such that the interferometer implements a transformation of the N modes between the N inputs and the N outputs.