Orthogonal Demodulation Pound–Drever–Hall Technique for Ultra-Low Detection Limit Pressure Sensing

We report on a novel optical microcavity sensing scheme by using the orthogonal demodulation Pound−Drever−Hall (PDH) technique. We found that larger sensitivity in a broad range of cavity quality factor (Q) could be obtained. Taking microbubble resonator (MBR) pressure sensing as...

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Bibliographic Details
Main Authors: Jinliang Hu, Sheng Liu, Xiang Wu, Liying Liu, Lei Xu
Format: Article
Language:English
Published: MDPI AG 2019-07-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/19/14/3223