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.

Date of Patent:
Oct. 04, 2022

Filed:

Jun. 03, 2016
Applicants:

University of Southampton, Hampshire, GB;

Indian Institute of Technology Madras (Iit Madras), Chennai, IN;

Inventors:

Shankar Pidishety, Hampshire, GB;

Balaji Srinivasan, Hampshire, GB;

Gilberto Brambilla, Hampshire, GB;

Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/28 (2006.01); G02B 6/27 (2006.01); H04B 10/50 (2013.01);
U.S. Cl.
CPC ...
G02B 6/2835 (2013.01); G02B 6/27 (2013.01); H04B 10/50 (2013.01);
Abstract

A fused fibre coupler comprising: a single mode fibre, SMF, and an orbital angular momentum fibre, OAMF, the fibres having a coupling portion in which the fibres are longitudinally aligned side by side and fused at least over a coupling length in which the SMF and OAMF are tapered such that the diameter of the SMF and the diameter of the OAMF give the fibres matching effective refractive indices for a single mode of the SMF and an orbital angular momentum, OAM, mode of the OAMF for a coupled wavelength of light.


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