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:
Apr. 05, 2022
Filed:
Mar. 15, 2018
Rockley Photonics Limited, London, GB;
California Institute of Technology, Pasadena, CA (US);
Arian Hashemi Talkhooncheh, Pasadena, CA (US);
Azita Emami, Pasadena, CA (US);
Yi Zhang, Pasadena, CA (US);
Aaron Zilkie, Pasadena, CA (US);
Rockley Photonics Limited, Altrincham, GB;
California Institute of Technology, Pasadena, CA (US);
Abstract
An optoelectronic device for quadrature-amplitude modulation (QAM) and a method of modulating light according to the same. The device comprising: an input waveguide; two intermediate waveguides, each coupled to the input waveguide via an input coupler; and an output waveguide, coupled to each of the intermediate waveguides via an output coupler; wherein each intermediate waveguide includes a modulating component connected in series with a phase shifting component, and each modulating component is connected to a respective electronic driver, the electronic drivers together being operable to produce a QAM-N modulated output from light entering the device from the input waveguide.