Laser‐Self‐Mixing Interferometry for Mechatronics Applications [PDF]
Sensors, 2009 We report on the development of an all-interferometric optomechatronic sensor for the detection of multi-degrees-of-freedom displacements of a remote target.
Gaetano Scamarcio +4 more
doaj +4 more sources
Displacement Sensing for Laser Self-Mixing Interferometry by Amplitude Modulation and Integral Reconstruction [PDF]
SensorsTo robustly and adaptively reconstruct displacement, we propose the amplitude modulation integral reconstruction method (AM-IRM) for displacement sensing in a self-mixing interferometry (SMI) system.
Yidan Huang, Wenzong Lai, Enguo Chen
doaj +2 more sources
A Fiber-Coupled Self-Mixing Laser Diode for the Measurement of Young’s Modulus [PDF]
Sensors, 2016 This paper presents the design of a fiber-coupled self-mixing laser diode (SMLD) for non-contact and non-destructive measurement of Young’s modulus. By the presented measuring system, the Young’s modulus of aluminum 6061 and brass are measured as 70.0 ...
Ke Lin +6 more
doaj +2 more sources
Self-Mixing Demodulation for Coherent Phase-Sensitive OTDR System [PDF]
Sensors, 2016 Phase-sensitive optical time domain reflectometry (Ф-OTDR) attracts much attention due to its capability of telling the type and position of an intrusion simultaneously.
Haijun He +7 more
doaj +2 more sources
Self-Mixing Interferometer for Acoustic Measurements through Vibrometric Calibration [PDF]
SensorsThe Self-Mixing Interformeter (SMI) is a self-aligned optical interferometer which has been used for acoustic wave sensing in air through the acousto-optic effect.
Simon Chanu-Rigaldies +3 more
doaj +2 more sources
Noise in an FM-Converted Self-Mixing Interferometer
IEEE Transactions on Instrumentation and Measurement, 2019 We measure the noise of the converted frequency-modulated (cFM) signal in a self-mixing interferometer (SMI) and confirm the theoretical prediction of a dependence of rms noise from ( $1+ C)^{-1}$ , where $C$ is the Acket feedback factor, up to a high value (i.e., $C=30$ ) in region III of Tkach and Chraplyvy feedback diagram.
Michele Norgia +2 more
openalex +3 more sources
Self-Mixing Thin-Slice Solid-State Laser Metrology
Sensors, 2011 This paper reviews the dynamic effect of thin-slice solid-state lasers subjected to frequency-shifted optical feedback, which led to the discovery of the self-mixing modulation effect, and its applications to quantum-noise-limited versatile laser ...
Kenju Ōtsuka
exaly +3 more sources
Feedback Regimes of LFI Sensors: Experimental Investigations
Sensors, 2022 In this article, we revisit the concept of optical feedback regimes in diode lasers and explore each regime experimentally from a somewhat unconventional point of view by relating the feedback regimes to the laser bias current and its optical feedback ...
Karl Bertling +4 more
doaj +1 more source
Comparison of plane mirror vs retroreflector performance for laser-self-mixing displacement sensors [PDF]
Journal of the European Optical Society-Rapid Publications, 2009 The behavior of a displacement optical sensor based on the Laser-Self-Mixing effect employing a plane mirror (PT) and a solid corner-cube (CC) as moving target is analyzed.
Ottonelli S. +4 more
doaj +1 more source
Toward an Estimation of the Optical Feedback Factor C on the Fly for Displacement Sensing
Sensors, 2021 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 C when the laser operates in the moderate and strong feedback regimes.
Olivier D. Bernal +3 more
doaj +1 more source