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:
Sep. 08, 2026
Filed:
Sep. 22, 2022
Sumitomo Electric Industries, Ltd., Osaka, JP;
Shigehiro Nagano, Osaka, JP;
Manabu Shiozaki, Osaka, JP;
Hajime Arao, Osaka, JP;
Tetsuya Nakanishi, Osaka, JP;
SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka, JP;
Abstract
A manufacturing method, etc. facilitating control of the waveguide's width and thickness in an optical component, the method including preparing a glass member, irradiating femtosecond laser light, and moving a laser light condensed point. The laser light has an energy amount causing the glass member's refractive-index-change and a flat-top-shaped intensity distribution. The beam-irradiation region is defined by a region having an area of 1/eor more of the maximum intensity. The flat-top region is defined by a contour of a region of ½ or more of the maximum intensity and has an area of 0.45 times or more that of the beam-irradiation region. An angle between the beam-irradiation region and the scanning-direction is from 70° to 110°, and an angle between an orthogonal plane to the glass member's thickness direction and the scanning-direction is 20° or less.