High-Q-Factor Silica-Based Racetrack Microring Resonators
oleh: Yue-Xin Yin, Xiao-Jie Yin, Xiao-Pei Zhang, Guan-Wen Yan, Yue Wang, Yuan-Da Wu, Jun-Ming An, Liang-Liang Wang, Da-Ming Zhang
| Format: | Article |
|---|---|
| Diterbitkan: | MDPI AG 2021-02-01 |
Deskripsi
In this paper, ultrahigh-Q factor racetrack microring resonators (MRRs) are demonstrated based on silica planar lightwave circuits (PLCs) platform. A loaded ultrahigh-Q factor Q<sub>load</sub> of 1.83 × 10<sup>6</sup> is obtained. The MRRs are packaged with fiber-to-fiber loss of ~5 dB. A notch depth of 3 dB and ~137 pm FSR are observed. These MRRs show great potential in optical communications as filters. Moreover, the devices are suitable used in monolithic integration and hybrid integration with other devices, especially in external cavity lasers (ECLs) to realize ultranarrow linewidths.