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1. (WO2018001271) METHOD AND DEVICE GENERATING BIAS SIGNAL OF DELAY LINE INTERFEROMETER

Pub. No.:    WO/2018/001271    International Application No.:    PCT/CN2017/090535
Publication Date: Fri Jan 05 00:59:59 CET 2018 International Filing Date: Thu Jun 29 01:59:59 CEST 2017
IPC: H04B 10/69
Applicants: ZTE CORPORATION
中兴通讯股份有限公司
Inventors: ZHANG, Liwei
张理维
Title: METHOD AND DEVICE GENERATING BIAS SIGNAL OF DELAY LINE INTERFEROMETER
Abstract:
A method and device generating a bias signal of a delay line interferometer (DLI). The method comprises: receiving a feedback voltage signal output from a gain control circuit; applying, to the feedback voltage, a preconfigured perturbation signal to obtain a first voltage signal; and performing signal processing on the first voltage signal to obtain a second voltage signal, inputting, into a digital-to-analog converter (DAC), the second voltage signal, to enable a signal output by the DAC to generate via a driving circuit a bias signal, wherein the bias signal is output to a DLI, to enable the DLI to perform, according to the bias signal, a phase push-pull operation on a received optical signal.