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1. (WO2018000194) SIGNAL GENERATOR AND TRANSMITTER

Pub. No.:    WO/2018/000194    International Application No.:    PCT/CN2016/087481
Publication Date: Fri Jan 05 00:59:59 CET 2018 International Filing Date: Wed Jun 29 01:59:59 CEST 2016
IPC: H04L 21/00
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
华为技术有限公司
Inventors: DAI, Jing
戴竞
YE, Zhicheng
叶志成
GAO, Jianhe
高建河
Title: SIGNAL GENERATOR AND TRANSMITTER
Abstract:
The present application provides a signal generator comprising a driving circuit, a straight waveguide, and a micro-ring waveguide coupled to the straight waveguide. Wherein the micro-ring waveguide is provided with N electrodes, and N is an integer and greater than or equal to 1. The driving circuit converts a received N-bit digital signal into N voltage signals and applies N voltage signals one-to-one to N electrodes such that a PAM signal is generated in an area of the micro-ring waveguide covered by the N electrodes. Since the signal generator generates a PAM signal using an electrode covering the micro-ring waveguide rather than using a DAC, costs can be reduced.