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:
Jun. 13, 2023
Filed:
Mar. 25, 2020
Applicant:
Ushio Denki Kabushiki Kaisha, Tokyo, JP;
Inventors:
Aya Ota, Tokyo, JP;
Toshikazu Nagashima, Tokyo, JP;
Assignee:
USHIO DENKI KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/35 (2006.01); G02F 1/365 (2006.01);
U.S. Cl.
CPC ...
G02F 1/365 (2013.01); G02F 1/3528 (2021.01);
Abstract
A stretching fiber module that stretches a pulse width of the broadband pulsed light from a broadband pulsed light source such that a time and a wavelength in a pulse correspond to each other on a one-to-one basis includes a multicore fiber and single-core compensation fibers coupled to cores of the multicore fiber. The compensation fibers compensate for a variation in wavelength dispersion characteristic between the cores of the multicore fiber and are temperature-controlled by a temperature adjuster.