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Noncontact Photoacoustic Signal Detection Using Phase-diversity Optical Coherent Receiver

Xiaoyan Wang,Masanori Hanawa

26th Optoelectronics and Communications Conference（2021）

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Abstract
An optical digital coherent detection technique is applied to realize a stable real-time detection of noncontact photoacoustic signal by acquiring the entire quadrature components of the signal without waiting for the highest intensity instance.
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Key words
phase-diversity optical coherent receiver,optical digital coherent detection technique,real-time detection,entire quadrature components,noncontact photoacoustic signal detection
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