Six-beam homodyne laser Doppler vibrometry based on silicon photonics technology | Zendy

Yanlu Li | Zendy; Jinghao Zhu | Zendy; Matthieu Duperron | Zendy; Peter O’Brien | Zendy; Ralf Schüler | Zendy; Søren Aasmul | Zendy; Mirko De Melis | Zendy; Mathias Kersemans | Zendy; Roel Baets | Zendy

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Six-beam homodyne laser Doppler vibrometry based on silicon photonics technology

Author(s) -

Yanlu Li,

Jinghao Zhu,

Matthieu Duperron,

Peter O’Brien,

Ralf Schüler,

Søren Aasmul,

Mirko De Melis,

Mathias Kersemans,

Roel Baets

Publication year - 2018

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.26.003638

Subject(s) - optics , photonics , photodiode , laser doppler vibrometer , homodyne detection , laser , silicon on insulator , laser doppler velocimetry , materials science , doppler effect , laser diode , optoelectronics , silicon , physics , laser beams , medicine , blood flow , astronomy

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 ≈ 909 m/s @ 61.5 kHz) is demonstrated.

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