Optimization of intensity interrogation method in cascaded double-ring sensors

Guoshuai Su; Zenan He; Zehua Xiao; Mingyu Li; Jian-Jun He; Qiushun Li

doi:10.1117/1.OE.61.10.107107

18 October 2022 Optimization of intensity interrogation method in cascaded double-ring sensors

Guoshuai Su, Zenan He, Zehua Xiao, Mingyu Li, Jian-Jun He, Qiushun Li

Author Affiliations +

Optical Engineering, Vol. 61, Issue 10, 107107 (October 2022). https://doi.org/10.1117/1.OE.61.10.107107

Abstract

A higher-sensitivity optical sensor based on cascaded double-ring resonators (CDRR) for intensity interrogation has been demonstrated. By detecting the output optical power ratio between the drop port and coupling port and reducing the free spectral range for difference (ΔFSR), the intensity interrogation sensitivity of the CDRR sensor can be improved by 2.15 times.

Citation Download Citation

Guoshuai Su, Zenan He, Zehua Xiao, Mingyu Li, Jian-Jun He, and Qiushun Li "Optimization of intensity interrogation method in cascaded double-ring sensors," Optical Engineering 61(10), 107107 (18 October 2022). https://doi.org/10.1117/1.OE.61.10.107107

Received: 20 May 2022; Accepted: 23 September 2022; Published: 18 October 2022

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