Vernier effect of cascaded dual microring sensor

Pramana: Journal of physics

C Y ZHAO^1,2¹  J X LIAO^1² 

[1] 1College of Science, Hangzhou Dianzi University, Zhejiang 310018, China^1;State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi University, Taiyuan 030006, China^2

关键词: Integrated optics;    microring sensor;    Vernier effect;    measurement range;   

DOI  :  

学科分类：物理（综合）

来源: Indian Academy of Sciences

【 摘 要 】

We demonstrate a Vernier microring sensor consisting of a traditional cascaded dual microring resonator and an additional measurement range unit. The sensor’s performance is simulated for different concentrations of aqueous solutions of ethylene glycol ($\rm{C_{2}H_{6}O_{2}}$). The theoretical sensitivity of our system is as high as 7386 nm/RIU, an order of magnitude much larger than that of the traditional cascaded dual microring sensor (562 nm/RIU), 13.1 times more than the traditional cascaded dual microring sensor. At the same time, the measurement range can reach as high as $2.49 × 10^{−2}$ RIU.

【 授权许可】

CC BY