Synchronous driving scheme for silicon-based optical switches to critically compensate for thermo-optic effect in carrier injection

Mingle Liao, Baojian Wu*, Wei Huang, Heng Zhou, Linjie Zhou, Kun Qiu, Jianping Chen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

The switching performance of high-speed optical-switching-integrated chips is to a great extent dependent on the carrier injection technique, which is accompanied by the thermo-optic effect. In this paper, we put forward a synchronous driving scheme for the silicon-based Mach-Zehnder interferometer (MZI) optical switches, which is capable of critically compensating for the temperature variation with carrier injection to the p-i-n diode on one arm of the MZI by applying a synchronous modulating voltage to the silicon resistive heater on the other MZI arm. The synchronous compensation mechanism is identified by experiments and simulation. Our experimental data show that, by comparison with the traditional driving scheme, the synchronous driving scheme can improve the extinction ratio by 1 dB, along with a better switching waveform.

Original languageEnglish (US)
Pages (from-to)205-210
Number of pages6
JournalApplied optics
Volume56
Issue number2
DOIs
StatePublished - Jan 10 2017

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering

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