论文标题
关于绝缘子微孔谐振器中硅中的热载体非线性建模
On the modeling of thermal and free carrier nonlinearities in Silicon On Insulator microring resonators
论文作者
论文摘要
综合硅谐振器的时间动力学是使用一组将内部能量，温度和自由载体种群耦合的方程式建模的。由于其简单性，牛顿的冷却定律是描述此类系统热发展的传统选择。在这项工作中，我们从理论和实验上证明这在整体平面设备中可能不足，从而导致预测不准确。我们引入了一个新方程来重现正确的温度行为，以通过实验结果来固定差异。我们讨论了我们精制模型的局限性和有效性范围，并确定了Netwon定律提供的那些案例，但仍然是准确的解决方案。我们的建模描述了热载体和自由载体不稳定性的基础现象，并且是光子系统工程的有价值工具，这些工具在谐振器动力学状态下（例如所有光学尖峰神经网络或神经形态计算的储层）。
The temporal dynamics of integrated silicon resonators has been modeled using a set of equations coupling the internal energy, the temperature and the free carrier population. Owing to its simplicity, Newton's law of cooling is the traditional choice for describing the thermal evolution of such systems. In this work, we theoretically and experimentally prove that this can be inadequate in monolithic planar devices, leading to inaccurate predictions. A new equation, that we train to reproduce the correct temperature behaviour, is introduced to fix the discrepancies with the experimental results. We discuss the limitations and the range of validity of our refined model, identifying those cases where Netwon's law provides, nevertheless, accurate solutions. Our modeling describes the phenomena underlying thermal and free carrier instabilities, and is a valuable tool for the engineering of photonic systems which relay on resonator dynamical states, such as all optical spiking neural networks or reservoirs for neuromorphic computing.
