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Real-Time Algorithm for Versatile Displacement Sensors Based on Self-Mixing Interferometry
IEEE Sensors Journal, 2016 International audienceThis paper presents a general displacement reconstruction algorithm for sensors based on self-mixing (SM) interferometry suitable to work at different optical feedback conditions.
Francis Bony, Thierry Bosch
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Detection of Multi-Modality in Self-Mixing Interferometry
2020 17th International Bhurban Conference on Applied Sciences and Technology (IBCAST), 2020Self-mixing interferometry (SMI) is a contact-less sensing technique which is used for different metrological and biomedical applications. SMI phenomena occurs when laser beam is reflected back into the laser cavity by a remote target surface and mixes with the originally generated optical beam.
Muhammad Usman +2 more
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Self-mixing frequency-modulated laser interferometry
Optoelectronics, Instrumentation and Data Processing, 2008Methods of laser interferometry based on the optical feedback and frequency-modulated laser diode effects are described. An interference signal is analyzed for problems concerned with range finding, displacement estimation, and measurement of velocities and vibration parameters.
V. S. Sobolev, G. A. Kashcheeva
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Applications of optical feedback self-mixing interferometry
SPIE Proceedings, 2006The paper reviewed the new emerging technique: optical feedback self-mixing interferometry (OFSMI) and its applications. Three different methods on measuring the linewidth enhancement factor (LEF) based on OFSMI are presented here and compared. The experimental results show that LEF can be measured by OFSMI with a simple set-up and good accuracy.
Yanguang Yu +3 more
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Evolution of Laser Ablation Plume Measured by Self-Mixing Interferometry
2018 IEEE 4th International Forum on Research and Technology for Society and Industry (RTSI), 2018Laser ablation is the basis of most of the laser micromachining processes. Depending on the pulse duration, wavelength, intensity of the beam, as well as the material type, material removal may occur in the form of vaporization, melt expulsion, or direct sublimation. Most commonly material removal is accompanied by a plume formation.
Donadello, Simone +2 more
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Improving the accuracy of laser self-mixing interferometry for velocity measurement
2017 IEEE International Instrumentation and Measurement Technology Conference (I2MTC), 2017Self-mixing interferometry (SMI) employs fewer components, leading to a compact, robust and low cost system. In this paper, the main error sources of SMI for velocity measurement are analyzed and a simple error model is proposed. The dependence of signal amplitude and relative error on the incident angle is acquired by experiment.
Hui Sun, Ji-Gou Liu, Ralph Kennel
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Developing self‐mixing interferometry for instrumentation and measurements
Laser & Photonics Reviews, 2011AbstractIn this review, self‐mixing interferometry (SMI), a new configuration of interferometry, is discussed. SMI has practical advantages compared to standard interferometry, for example SMI does not require any optical part external to the laser chip and can be employed in a variety of measurements.
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Self-mixing interferometry with mutual independent orthogonal polarized light
Optics Letters, 2016A self-mixing interferometry with mutual independent orthogonal polarized light is introduced. Its most important feature is that two mutual independent orthogonal lights are used as measuring and reference light. Frequency shifting and polarization multiplexing technologies are used in the proposed optical system. Phase variation of the two orthogonal
Shaohui, Zhang +3 more
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Low-coherence interferometry using a self-mixing super-luminescent diode
IEEE Photonics Technology Letters, 1998A novel low-coherence interferometer (LCI) using a self-mixing superluminescent diode is described. The optical scheme proposed uses the photodiode on the back-face of a commercial super luminescent diode to detect the interference signal from a Fizeau interferometer.
ROVATI, Luigi, F. Docchio
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Noninvasive flow cytometry by heterodyne self-mixing interferometry
CLEO: 2015, 2015We present a device for characterizing red blood cells flows in capillaries (speed, hematocrit, aggregation, …). We've used the LOFI technique on a microfluidic system that mimics the human skin and subcutaneous tissues.
O. Hugon +6 more
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