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. 11, 2024
Filed:
May. 25, 2021
Applicant:
Microsoft Technology Licensing, Llc, Redmond, WA (US);
Inventors:
Bernard Charles Kress, Redwood City, CA (US);
Ashley N Saulsbury, Bellevue, WA (US);
Assignee:
Microsoft Technology Licensing, LLC, Redmond, WA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 27/01 (2006.01); G02F 1/1334 (2006.01); G02F 1/1347 (2006.01); G02F 1/29 (2006.01);
U.S. Cl.
CPC ...
G02F 1/1347 (2013.01); G02B 27/0172 (2013.01); G02F 1/13342 (2013.01); G02F 1/292 (2013.01); G02B 27/0101 (2013.01);
Abstract
Examples are disclosed relating to tunable attenuation of incident light using a switchable grating. One example provides an optical attenuator comprising a switchable grating configured to diffract light within a wavelength band at a diffraction angle. The optical attenuator further comprises an electrode pair configured to apply a voltage across the switchable grating to tune a proportion of incident light diffracted at the diffraction angle, and an optical dump to receive the proportion of incident light diffracted.