title: Synchronous driving scheme for silicon-based optical switches to critically compensate for thermo-optic effect in carrier injection.
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.
authors.forename: Mingle
authors.initials: M
authors.lastname: Liao
authors.forename: Baojian
authors.initials: B
authors.lastname: Wu
authors.forename: Wei
authors.initials: W
authors.lastname: Huang
authors.forename: Heng
authors.initials: H
authors.lastname: Zhou
authors.forename: Linjie
authors.initials: L
authors.lastname: Zhou
authors.forename: Kun
authors.initials: K
authors.lastname: Qiu
authors.forename: Jianping
authors.initials: J
authors.lastname: Chen