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Proceedings Article

Silicon-nanowire-based optical sensor with high sensitivity and large measurement range by using Mach-Zehnder interferometer-coupled microring

[+] Author Affiliations
Jianwei Wang, Sailing He, Daoxin Dai

Zhejiang Univ. (China)

Proc. SPIE 7990, Optical Sensors and Biophotonics II, 79900V (December 26, 2010); doi:10.1117/12.888453
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From Conference Volume 7990

  • Optical Sensors and Biophotonics II
  • Qingming Luo; Frank Chuang; Stefan Haacke; Chih-Chung Yang
  • Shanghai, China | December 08, 2010

abstract

A Mach-Zehnder interferometer-coupled microring is experimentally demonstrated for optical sensing with a high sensitivity (~111 nm /RIU), a high extinction ratio (>26dB), and a very large quasi free-spectral-range (>100 nm), which helps to obtain a large measurement range. The MZI-coupled microring sensor still has good performance when the reflective index of the ambient materials largely changes (1<n<1.538).

© (2010) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Jianwei Wang ; Sailing He and Daoxin Dai
"Silicon-nanowire-based optical sensor with high sensitivity and large measurement range by using Mach-Zehnder interferometer-coupled microring", Proc. SPIE 7990, Optical Sensors and Biophotonics II, 79900V (December 26, 2010); doi:10.1117/12.888453; http://dx.doi.org/10.1117/12.888453


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