High-Q-Factor Tunable Silica-Based Microring Resonators
oleh: Yue-Xin Yin, Xiao-Pei Zhang, Xiao-Jie Yin, Yue Li, Xin-Ru Xu, Jun-Ming An, Yuan-Da Wu, Xiao-Ping Liu, Da-Ming Zhang
| Format: | Article |
|---|---|
| Diterbitkan: | MDPI AG 2021-07-01 |
Deskripsi
A high-Q-factor tunable silica-based microring resonator (MRR) is demonstrated. To meet the critical-coupling condition, a Mach–Zehnder interferometer (MZI) as the tunable coupler was integrated with a racetrack resonator. Then, 40 mW electronic power was applied on the microheater on the arm of MZI, and a maximal notch depth of about 13.84 dB and a loaded Q factor of 4.47 × 10<sup>6</sup> were obtained. The proposed MRR shows great potential in practical application for optical communications and integrated optics.