The serially coupled multiple ring resonator filters and Vernier effect
The serially coupled multiple ring resonator filters and Vernier effect
复制标题
串联耦合多环谐振滤波器和游标效应
作者：
Chinda Chaichuay;P. Yupapin;P. Saeung
分析了串联耦合多环谐振器（SMRR）滤波器的一般特性。在这种情况下，SMRR 的环形谐振器具有相同的周长，并且耦合系数分布提供比单环形谐振器更陡峭的滚降、更平坦的顶部和更大的阻带抑制的通带特性。此外，我们还设计并模拟了非对称游标型 SMRR 滤波器，用于改善具有不同环半径的宽自由光谱范围 (FSR)。为了扩展 SMRR 的 FSR，游标滤波器由各个环形谐振器的 FSR 的最小公倍数确定。还研究了间隙共振抑制的改进。 SMRR 滤波器 Z 域中光学传递函数的新颖推导采用图形方法表达，其周长不等的环形谐振器可以用信号流图表示。
The general characteristics of serially coupled multiple ring resonator (SMRR) filters are analyzed. In this case, the ring resonators of the SMRR have identical perimeters and the coupling coefficients distribution provides passband characteristics with steeper roll-off, flatter top and greater stopband rejection than a single ring resonator. In addition, we have also designed and simulated a nonsymmetric Vernier type of SMRR filters for improving a wide free spectral range (FSR) with different ring radii. To expand the FSR of the SMRR, Vernier filters are determined by the least common multiple of the FSR of individual ring resonators. The improvement in suppression of interstitial resonances is also investigated. A novel derivation of the optical transfer functions in Z-domain of SMRR filters is expressed employing a graphical approach to ring resonators with unequal perimeters that can be represented in signal flow graph diagrams.
影响因子：
4.7
作者：
Yanagase, Y;Suzuki, S;Chu, ST
通讯作者：
Chu, ST