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. 28, 2021
Filed:
Mar. 01, 2019
Applicant:
Viavi Solutions Inc., San Jose, CA (US);
Inventors:
Karen Denise Hendrix, Santa Rosa, CA (US);
Richard A. Bradley, Jr., Santa Rosa, CA (US);
Marius Grigonis, Santa Rosa, CA (US);
Georg J. Ockenfuss, Santa Rosa, CA (US);
Assignee:
VIAVI Solutions Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/28 (2006.01); G01J 5/08 (2006.01); H04N 13/254 (2018.01); G02B 1/115 (2015.01); C23C 14/58 (2006.01); C23C 14/08 (2006.01); C23C 14/54 (2006.01); C23C 14/18 (2006.01); G02B 1/11 (2015.01); G02B 5/20 (2006.01); G06K 9/00 (2006.01); H04N 5/33 (2006.01);
U.S. Cl.
CPC ...
G02B 5/281 (2013.01); C23C 14/08 (2013.01); C23C 14/185 (2013.01); C23C 14/548 (2013.01); C23C 14/5806 (2013.01); G01J 5/0862 (2013.01); G02B 1/11 (2013.01); G02B 1/115 (2013.01); G02B 5/207 (2013.01); G02B 5/285 (2013.01); G06K 9/00335 (2013.01); H04N 5/33 (2013.01); H04N 13/254 (2018.05);
Abstract
An optical filter having a passband at least partially overlapping with a wavelength range of 800 nm to 1100 nm is provided. The optical filter includes a filter stack formed of hydrogenated silicon layers and lower-refractive index layers stacked in alternation. The hydrogenated silicon layers each have a refractive index of greater than 3 over the wavelength range of 800 nm to 1100 nm and an extinction coefficient of less than 0.0005 over the wavelength range of 800 nm to 1100 nm.