Toward an Estimation of the Optical Feedback Factor <i>C</i> on the Fly for Displacement Sensing

Toward an Estimation of the Optical Feedback Factor <i>C</i> on the Fly for Displacement Sensing

In this paper, a method based on the inherent event-based sampling capability of laser optical feedback interferometry (OFI) is proposed to assess the optical feedback factor <i>C</i> when the laser operates in the moderate and strong feedback regimes. Most of the phase unwrapping open-l...

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Bibliographic Details
Main Authors: Olivier D. Bernal, Usman Zabit, Francis Jayat, Thierry Bosch
Format: Article
Language:English
Published: MDPI AG 2021-05-01
Series:Sensors
Subjects:
optical feedback interferometry
self-mixing
speckle
optical feedback factor
displacement measurement
non-uniform sampling
Online Access:https://www.mdpi.com/1424-8220/21/10/3528

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