Silicon Photonic Polarization Multiplexing Sensor with Both Large Range and High Resolution

Sensors

Sanshui Xiao¹  Xiaowei Guan¹  Xiaoyan Wang²  Zhibin Wang³  Shaojie Yin³ 

[1] DTU Fotonik, Department of Photonics Engineering, Technical University of Denmark, Ørsteds Plads, Building 345A, 2800 Kgs. Lyngby, Denmark;Institute for Future, Qingdao University, Qingdao 266071, China;School of Electrical Engineering, Yanshan University, Qinhuangdao 066004, China;

关键词: polarization multiplexing;    silicon photonic sensor;    Fabry–Pérot resonator;    microring resonator;    large range;    high resolution;   

DOI  :  10.3390/s20205870

来源: DOAJ

【 摘 要 】

A silicon photonic polarization multiplexing (PM) sensor featuring both a large range and a high resolution is proposed and experimentally demonstrated. The sensor includes a Fabry–Pérot (FP) resonator and a microring resonator (MRR) functioning as the sensing parts. With PM technology, the FP resonator only works on the transverse-electric mode while the MRR only on the transverse-magnetic mode. Thus, the proposed sensor can simultaneously achieve a large range with a short FP resonator and a high resolution with a high-Q MRR. Measured results show a range of 113 °C and a resolution of 0.06 °C for temperature sensing, and a range of 0.58 RIU (refractive index unit) with the resolution of 0.002 RIU for analyte refractive index sensing.

【 授权许可】

Unknown