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:
Oct. 26, 2021
Filed:
Apr. 15, 2019
Applicant:
Ofs Fitel, Llc, Norcross, GA (US);
Inventors:
Raja A Ahmad, South Bound Brook, NJ (US);
Man F Yan, Berkeley Heights, NJ (US);
David J DiGiovanni, Mountain Lakes, NJ (US);
Assignee:
OFS FITEL, LLC, Norcross, GA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 6/02 (2006.01); G02B 6/024 (2006.01); G02B 21/16 (2006.01); H01S 3/067 (2006.01); G02B 6/14 (2006.01);
U.S. Cl.
CPC ...
G02B 6/024 (2013.01); G02B 6/02023 (2013.01); G02B 6/14 (2013.01); G02B 21/16 (2013.01); H01S 3/06712 (2013.01);
Abstract
A higher-order mode (HOM) fiber is configured as a polarization-maintaining fiber by including a pair of stress rods at a location within the cladding layer that provides for a sufficient degree of birefringence without unduly comprising the spatial mode profile of the propagating higher-order modes. An optical imaging system utilizing polarization-maintaining HOM fiber allows for different wavelength probe signals to be directed into different modes, useful in applications such as STED microscopy, 2D sensing, and the like.