Efficient Resonance Seeking Algorithm for High-Order Ring-Assisted Mach-Zehnder Interferometer Calibration

Qishen Liang, Zichao Zhao, Haoran Ma, Bin Zhang, Yuehai Wang, Jianyi Yang

Abstract: We propose an efficient calibration algorithm for high-order RMZIs and experimentally demonstrate it with a fabricated RMZI chip. This approach achieves $\lt 4^{\circ}$ phase error within 20 iterations, which verifies its feasibility in DWDM application.