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:
Dec. 05, 2017
Filed:
Jan. 07, 2016
Futurewei Technologies, Inc., Plano, TX (US);
Morgan Chen, San Jose, CA (US);
Qianfan Xu, San Jose, CA (US);
Hungyi Lee, Cupertino, CA (US);
Yifan Gu, Santa Clara, CA (US);
Liang Gu, San Jose, CA (US);
Yen Dang, San Jose, CA (US);
Gong Lei, Sunnyvale, CA (US);
Yuming Cao, Pleasanton, CA (US);
Xiao Shen, San Bruno, CA (US);
Yu Sheng Bai, Los Altos Hills, CA (US);
Futurewei Technologies, Inc., Plano, TX (US);
Abstract
An apparatus comprising a first electrical driver configured to generate a first binary voltage signal according to first data, a second electrical driver configured to generate a second binary voltage signal according to second data, wherein the first data and the second data are different, and a first optical waveguide arm coupled to the first electrical driver and the second electrical driver, wherein the first optical waveguide arm is configured to shift a first phase of a first optical signal propagating along the first optical waveguide arm according to a first voltage difference between the first binary voltage signal and the second binary voltage signal to produce a first multi-level phase-shifted optical signal.