Wavelength conversion in modulated coupled-resonator systems and their design via an equivalent linear filter representation.
Wavelength conversion in modulated coupled-resonator systems and their design via an equivalent linear filter representation.
复制标题
调制耦合谐振器系统中的波长转换及其通过等效线性滤波器表示的设计。
作者：
M. Wade;Xiaoge Zeng;M. Popović
我们提出了基于调制耦合谐振器的波长转换器，其通过将调制频率与未调制系统的超模的频率分裂相匹配来实现转换。使用时间耦合模理论，我们表明，这些时变系统有一个等效的线性，时不变的滤波器表示，简化了现实系统的设计参数的优化工程。将我们的模型应用于载波等离子体色散调制器作为示例实现，我们计算出内在品质因数为10（4）-10（6）的转换效率在-5.4和-1.7 dB之间。我们发现，共振位移的总线宽的比例是最重要的参数时，确定转换效率。最后，我们将讨论如何使用这个模型来设计设备，如移频器，广泛可调谐的射频振荡器，频率梳。
We propose wavelength converters based on modulated coupled resonators that achieve conversion by matching the modulation frequency to the frequency splitting of the supermodes of the unmodulated system. Using temporal coupled-mode theory, we show that these time-variant systems have an equivalent linear, time-invariant filter representation that simplifies the optimal engineering of design parameters for realistic systems. Applying our model to carrier plasma-dispersion modulators as an example implementation, we calculate conversion efficiencies between -5.4 and -1.7 dB for intrinsic quality factors of 10(4)-10(6). We show that the ratio of the resonance shift to the total linewidth is the most important parameter when determining conversion efficiency. Finally, we discuss how this model can be used to design devices such as frequency shifters, widely tunable radio frequency oscillators, and frequency combs.