摘要
We designed a reconfigurable dual-interferometer coupled silicon nitride microring resonator.By tuning the integrated heater on interferometer's arms,the"critical coupling"bandwidth of resonant mode is continuously adjustable whose quality factor varies from 7.9×10^(4) to 1.9×10^(5) with the extinction ratio keeping higher than 25 dB.Also a variety of coupling spanning from"under-coupling"to"over-coupling"were achieved,showing the ability to tune the quality factor from 6.0×10^(3) to 2.3×10^(5).Our design can provide an adjustable filtering method on silicon nitride photonic chip and contribute to optimize the nonlinear process for quantum photonics and all-optical signal processing.
作者
Jiacheng Liu
Chao Wu
Gongyu Xia
Qilin Zheng
Zhihong Zhu
Ping Xu
刘嘉成;吴超;夏功榆;郑骑林;朱志宏;徐平(Hunan Provincial Key Laboratory of Novel Nano-Optoelectronic Information Materials and Device,Institute for Quantum Information and State Key Laboratory of High Performance Computing,College of Advanced Interdisciplinary Studies&College of Computer,National University of Defense Technology,Changsha 410073,China)
基金
the National Key Research and Development Program of China(Grant Nos.2019YFA0308700and 2017YFA0303700)
the National Natural Science Foundation of China(Grant Nos.11627810 and 11690031)
the Open Funds from the State Key Laboratory of High Performance Computing of China(HPCL,National University of Defense Technology).
