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1. (WO2017152946) COMPACT INTERFEROMETER, RELATED BIO-CHEMICAL SENSOR AND MEASUREMENT DEVICE

Pub. No.:    WO/2017/152946    International Application No.:    PCT/EP2016/054852
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Wed Mar 09 00:59:59 CET 2016
IPC: G01B 9/02
G01N 21/552
G01N 21/45
G01D 5/26
G01N 33/68
Applicants: UNIVERSITÉ DE TECHNOLOGIE DE TROYES
Inventors: BRUYANT, Aurélien
VAILLANT, Julien
WU, Tzu-Heng
LIN, Chii-Wann
Title: COMPACT INTERFEROMETER, RELATED BIO-CHEMICAL SENSOR AND MEASUREMENT DEVICE
Abstract:
The invention relates to a compact and portable interferometer (4) comprising an optical source (40) generating a first beam (B1); an optical chip comprising a first reflective layer (42) and a second reflective layer (45) separated by a dielectric spacer layer (41), the first reflective layer splitting the first beam into a reference beam (BR) and a second beam (B2), the second reflective layer reflecting the second beam into a signal beam (Bs) overlapping the reference beam to create an interference signal (I); a controlled phase modulation means; and a photo-detector (43) receiving the interference signal. The invention also relates to a bio-chemical sensor comprising an interferometer (4) wherein the second reflective layer is an optically-resonant layer chemically functionalized. The invention eventually relates to a measurement device comprising said interferometer or said bio-chemical sensor and a signal analyzing unit processing information from the photo-detector.