中国物理B ›› 2014, Vol. 23 ›› Issue (3): 34206-034206.doi: 10.1088/1674-1056/23/3/034206
• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇 下一篇
向星烨, 王葵如, 苑金辉, 晋博源, 桑新柱, 余重秀
Xiang Xing-Ye (向星烨), Wang Kui-Ru (王葵如), Yuan Jin-Hui (苑金辉), Jin Bo-Yuan (晋博源), Sang Xin-Zhu (桑新柱), Yu Chong-Xiu (余重秀)
摘要: We propose a novel high-performance digital optical sensor based on the Mach–Zehnder interferential effect and the dual-microring resonators with the waveguide-coupled feedback. The simulation results show that the sensitivity of the sensor can be orders of magnitude higher than that of a conventional sensor, and high quality factor is not critical in it. Moreover, by optimizing the length of the feedback waveguide to be equal to the perimeter of the ring, the measurement range of the proposed sensor is twice as much as that of the conventional sensor in the weak coupling case.
中图分类号: (Resonators, cavities, amplifiers, arrays, and rings)