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:
May. 27, 2025
Filed:
Sep. 12, 2022
Viavi Solutions Inc., Chandler, AZ (US);
Jinhui Yang, Santa Rosa, CA (US);
Marius Grigonis, Santa Rosa, CA (US);
VIAVI Solutions Inc., Chandler, AZ (US);
Abstract
In some implementations, an optical interference filter includes a substrate and one or more sets of layers that are disposed on the substrate. Each set of layers includes: a first layer that comprises at least tantalum and oxygen (e.g., a tantalum pentoxide (Ta2O5) material); a second layer that comprises at least aluminum and nitrogen (e.g., an aluminum nitride (AlN) material); and a third layer that comprises at least hydrogen and silicon (e.g., a hydrogenated silicon (Si:H) material). The second layer is disposed between the first layer and the third layer. In some implementations, a first surface of the second layer is disposed on a surface of the first layer, and a second surface of the second layer is disposed on a surface of the third layer.