Authors:	Y. Li, J. Zhu, M. Duperron, P. O'Brien, R. Schuler, S. Aasmul, M. De Melis, M. Kersemans, R. Baets
Title:	Six-beam homodyne laser Doppler vibrometry based on silicon photonics technology
Format:	International Journal
Publication date:	5/2018
Journal/Conference/Book:	Optics Express
Editor/Publisher:	OSA,
Volume(Issue):	26(3) p.3638-3645
DOI:	10.1364/oe.26.003638
Citations:	32 (Dimensions.ai - last update: 21/4/2024) 9 (OpenCitations - last update: 19/4/2024) Look up on Google Scholar
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Abstract

This paper describes an integrated six-beam homodyne laser Doppler vibrometry (LDV) system based on a silicon-on-insulator (SOI) full platform technology, with on-chip photo-diodes and phase modulators. Electronics and optics are also implemented around the integrated photonic circuit (PIC) to enable a simultaneous six-beam measurement. Measurement of a propagating guided elastic wave in an aluminum plate (speed ¡Ö 909 m/s @ 61.5 kHz) is demonstrated.