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:
Jul. 06, 2021
Filed:
Apr. 24, 2019
Rockley Photonics Limited, London, GB;
Dong Yoon Oh, Alhambra, CA (US);
David Arlo Nelson, Fort Collins, CO (US);
Pradeep Srinivasan, Fremont, CA (US);
Amit Singh Nagra, Altadena, CA (US);
Aaron John Zilkie, Pasadena, CA (US);
Jeffrey Driscoll, San Jose, CA (US);
Aaron L. Birkbeck, San Diego, CA (US);
Rockley Photonics Limited, Altrincham, GB;
Abstract
A modulator. In some embodiments, the modulator includes a portion of an optical waveguide, the waveguide including a rib extending upwards from a surrounding slab. The rib may have a first sidewall, and a second sidewall parallel to the first sidewall. The rib may include a first region of a first conductivity type, and a second region of a second conductivity type different from the first conductivity type. The second region may have a first portion parallel to and extending to the first sidewall, and a second portion parallel to the second sidewall. The first region may extend between the first portion of the second region and the second portion of the second region.