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. 17, 2019
Filed:
Dec. 08, 2015
Canon Kabushiki Kaisha, Tokyo, JP;
Koichiro Nakanishi, Tokyo, JP;
Yasuhiro Nagatomo, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A surface emitting laser having a wide wavelength tunable band is provided. A surface emitting laser includes a first reflecting mirror (); a second reflecting mirror (); and an active layer () arranged between the first reflecting mirror () and the second reflecting mirror (), a gap being formed between the second reflecting mirror () and the active layer (), an oscillation wavelength being tunable. The second reflecting mirror () includes a beam () comprising a single-crystal semiconductor, and a dielectric multilayer film () supported by the beam (), and the dielectric multilayer film () is arranged in an opening () formed in the beam ().