Data from: Modelling and simulation of a thermally induced optical transparency in a dual micro-ring resonator

This paper introduces the simulation and modelling of a novel dual
micro-ring resonator. The geometric configuration of the resonators, and
the implementation of a simulated broadband excitation source, results in
the realization of optical transparencies in the combined through port
output spectrum. The 130 nm silicon on insulator rib fabrication process
is adopted for the simulation of the dual-ring configuration. Two titanium
nitride heaters are positioned over the coupling regions of the
resonators, which can be operated independently, to control the spectral
position of the optical transparency. A third heater, centrally located
above the dual resonator rings, can be used to red shift the entire
spectrum to a required reference resonant wavelength. The free spectral
range with no heater currents applied is 4.29 nm. For a simulated heater
current of 7 mA (55.7 mW heater power) applied to one of the through
coupling heaters, the optical transparency exhibits a red shift of 1.79 nm
from the reference resonant wavelength. The ring-to-ring separation of
approximately 900 nm means that it can be assumed that there is a zero
ring-to-ring coupling field in this model. This novel arrangement has
potential applications as a gas mass airflow sensor or a gas species
identification sensor.

本文介绍了一种新型双微环谐振器（dual micro-ring resonator）的仿真与建模研究。该谐振器的几何结构结合仿真宽带激励源的实现方案，使得组合式直通端口输出光谱中可呈现光学透明特性。本次仿真采用130nm绝缘体上硅（silicon on insulator）脊形波导制备工艺来搭建双环结构。在谐振器的耦合区域上方设置了两台独立可控的氮化钛（titanium nitride）加热器，用于调控光学透明窗口的光谱位置。另有一台位于双谐振环正中央上方的第三加热器，可将整个光谱红移至指定的参考谐振波长。未施加加热器电流时，系统的自由光谱范围（free spectral range）为4.29nm。当对其中一台直通耦合加热器施加7mA（对应加热器功率55.7mW）的仿真电流时，光学透明窗口相较于参考谐振波长产生了1.79nm的红移。双环间距约为900nm，因此本模型中可认为环间耦合场为零。该新型结构具备作为气体质量流量传感器或气体种类识别传感器的应用潜力。