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:
Jul. 15, 2025
Filed:
Jul. 11, 2019
Hamamatsu Photonics K.k., Hamamatsu, JP;
Ryota Kakei, Hamamatsu, JP;
Shin Kato, Hamamatsu, JP;
Masaru Shimomaki, Hamamatsu, JP;
Fumitsugu Fukuyo, Hamamatsu, JP;
Tomoya Nakazawa, Hamamatsu, JP;
Yu Matsushiro, Hamamatsu, JP;
HAMAMATSU PHOTONICS K.K., Hamamatsu, JP;
Abstract
A fiber structure includes first and second optical fibers disposed such that tip portions thereof butt and a sheet-shaped saturable absorber sandwiched between the tip portion of the first optical fiber and the tip portion of the second optical fiber. Each of the tip portions of the first optical fiber and the second optical fiber has a core, a cladding provided around the core, and a ferrule provided around the cladding. The tip portion of the first optical fiber has a protruding shape protruding to a tip side. The saturable absorber has an adhering part at least adhering to the core of the first optical fiber and a non-adhering part present around the adhering part and not adhering to the tip portion of the first optical fiber.