[19p-Z10-1~15] 3.11 Photonic structures and phenomena

▲ [19p-Z10-14] Si CMOS ring resonator device for synthetic dimension photonics

〇Armandas Balcytis¹, Tomoki Ozawa², Yasutomo Ota³, Satoshi Iwamoto³, Jun Maeda¹, Toshihiko Baba¹ (1.Yokohama Nat'l Univ., 2.Tohoku Univ., 3.Univ. of Tokyo)

Keywords:synthetic dimension, topological photonics, ring resonator

We present a dynamically modulated ring resonator on a Si CMOS platform, hosting a synthetic dimension lattice spanning a 280 GHz bandwidth. Synthetic dimension dispersion relations were acquired for the first time for a Si integrated photonic device by compiling 2D plots of time-resolved ring transmittance over the 20.4 GHz free spectral range matching modulation period as a function of input laser detuning. Modulations at single and double free spectral range frequencies, corresponding to nearest- and second-nearest-neighbor mode coupled 1D tight-binding models, were employed. When both of these modulations are applied concurrently with different relative phases, it becomes possible to simulate a one-dimensional triangular ladder with an alternating magnetic flux.