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16156
01/10/2016

Optical feedback interferometry for microscale-flow sensing study: numerical simulation and experimental validation

Y.ZHAO, J.PERCHOUX, L.CAMPAGNOLO, T.CAMPS, R.ATASHKHOOEI, V.BARDINAL

MICA, OSE, UPC

Revue Scientifique : Optics Express, Vol.24, N°21, 23849p., Octobre 2016 , N° 16156

Lien : https://hal.laas.fr/hal-01446494

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Abstract

Optical feedback interferometry (OFI) performance for microscale-flow sensing is studied theoretically and experimentally. A new numerical modeling approach for OFI flow meter spectrum reproduction is presented in this work to study the optical effect on the signal due to the micro-scale channel geometry. Two well-defined frequency peaks are found in the OFI spectrum, this phenomenon can be attributed to the reflection of the forward scattered light on the channel rear interface. The flow rate measurement shows good accuracy over a range of fluid velocities from 16.8 mm/s to 168 mm/s, thus providing a promising tool to study and to optimize the OFI microfluidic sensor system.

138156
16367
29/09/2016

Implementation of optical feedback interferometry for sensing applications in fluidic systems

E.E.RAMIREZ MIQUET

OSE

Doctorat : INP de Toulouse, 29 Septembre 2016, 139p., Président: A.HUMEAU HEURTIER, Rapporteurs: E.LACOT, A.LE DUFF, Examinateurs: K.LOUBIERE, Directeurs de thèse: J.PERCHOUX, O.SOTOLONGO COSTA, Membre invité: T.BOSCH , N° 16367

Lien : https://hal.archives-ouvertes.fr/tel-01389536

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Résumé

L'interférométrie par réinjection optique est une technique de mesure dont l'implémentation pour l'interrogation de systèmes fluidiques est assez récente. Le principe de mesure est basé sur la perturbation des paramètres d'émission du laser induite par la réinjection dans la cavité laser de lumière rétro - diffusée par une cible distante. La technique p ermet le développement de capteurs compact et non - invasifs qui mesurent différents paramètres liés aux déplacements de la cible. En particulier, les interféromètres par réinjection optique prennent avantage de l'effet Doppler pour mesurer la vitesse de tra ceurs dans les liquides en écoulement. Cet aspect important de la technique de réinjection optique la rend adaptée à une grande variété d'applications dans les domaines du génie chimique et du biomédical où un contrôle des écoulements est requis. Cette thè se présente l'implémentation de capteurs basés sur la réinjection optique pour différents systèmes fluidiques où la vitesse locale d'écoulement ou le débit sont directement mesurés. Nous présentons une étude centrée sur les applications où la réinjection o ptique est utilisée pour la mesure du débit à la micro - échelle avec en particulier une analyse de la robustesse des méthodes de traitement du signal propres aux régimes de diffusion simple et de diffusion multiple. Par ailleurs, nous présentons des résulta ts expérimentaux de mesures ex vivo où le capteur par réinjection optique est proposé comme alternative pour la myographie. Nous présentons également une implémentation temps réel pour l’estimation du débit instantané d'écoulements dynamiques dans une conf iguration milli - fluidique. Un système semi - automatisé de détection de particule unique dans un micro - canal est proposé et démontré. Enfin, un capteur basé sur la réinjection optique est implémenté pour la caractérisation des interactions entre deux fluides immiscibles en écoulement à micro - échelle et les mesures réalisées sont comparées à un modèle développé afin de décrire le comportement hydrodynamique des deux fluides dans un micro - réacteur. Le manuscrit décrit une contribution importante pour l'implémen tation de capteur par réinjection optique pour des applications fluidiques et en particulier micro - fluidiques. Il présente également des résultats expérimentaux remarquables qui ouvrent de nouveaux horizons pour l'interférométrie à réinjection optique.

Abstract

Optical feedback interferometry is a sensing technique with relative recent implementation for the interrogation of fluidic systems. The sensing principle is based on the perturbation of the laser emission parameters induced by the reinjection in the laser cavity of light back-scattered from a distant target. The technique allows for the development of compact and non-invasive sensors that measure various parameters related to the motion of moving targets. In particular, optical feedback interferometers take advantage of the Doppler effect to measure the velocity of tracers in flowing liquids. These important features of the optical feedback interferometry technique make it well-suited for a variety of applications in chemical engineering and biomedical fields, where accurate monitoring of the flows is needed. This thesis presents the implementation of optical feedback interferometry based sensors in multiple fluidic systems where local velocity or flow rate are directly measured. We present an application-centered study of the optical feedback sensing technique used for flow measurement at the microscale with focus on the reliability of the signal processing methods for flows in the single and the multiple scattering regimes. Further, we present experimental results of ex vivo measurements where the optical feedback sensor is proposed as an alternative system for myography. In addition we present a real-time implementation for the assessment of non-steady flows in a millifluidic configuration. A semi-automatized system for single particle detection in a microchannel is proposed and demonstrated. Finally, an optical feedback based laser sensor is implemented for the characterization of the interactions between two immiscible liquid-liquid flowing at the microscale, and the measurement is compared to a theoretical model developed to describe the hydrodynamics of both fluids in a chemical microreactor. The present manuscript describes an important contribution to the implementation of optical feedback sensors for fluidic and microfluidic applications. It also presents remarkable experimental results that open new horizons to the optical feedback interferometry.

Mots-Clés / Keywords
Optical feedback interferometry; Laser diodes; Microfluidics; Flow measurement; Doppler effect; Interférométrie par réinjection optique; Diode laser; Micro-fluidique; Mesure de débit; Effet doppler;

137973
16372
01/08/2016

Optical feedback interferometry for velocity measurement of parallel liquid-liquid flows in a microchannel

E.E.RAMIREZ MIQUET, J.PERCHOUX, K.LOUBIERE, C.TRONCHE, L.PRAT, O.SOTOLONGO-COSTA

OSE, LGC, I2C, UAEM

Revue Scientifique : Sensors, Vol.16, N°8, 1233p., Août 2016 , N° 16372

Lien : https://hal.archives-ouvertes.fr/hal-01382068

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Abstract

Optical feedback interferometry (OFI) is a compact sensing technique with recent implementation for flow measurements in microchannels. We propose implementing OFI for the analysis at the microscale of multiphase flows starting with the case of parallel flows of two immiscible fluids. The velocity profiles in each phase were measured and the interface location estimated for several operating conditions. To the authors knowledge, this sensing technique is applied here for the first time to multiphase flows. Theoretical profiles issued from a model based on the Couette viscous flow approximation reproduce fairly well the experimental results. The sensing system and the analysis presented here provide a new tool for studying more complex interactions between immiscible fluids (such as liquid droplets flowing in a microchannel).

138003
16371
01/05/2016

Current developments on optical feedback interferometry as an all-optical sensor for biomedical applications

J.PERCHOUX, A.QUOTB, R.ATASHKHOOEI, F.AZCONA, E.E.RAMIREZ MIQUET, O.BERNAL, A.JHA, A.LUNA ARRIAGA, C.YANEZ, J.CAUM, T.BOSCH, S.ROYO

OSE, UPC

Revue Scientifique : Sensors, Vol.16, N°5, 694p., Mai 2016 , N° 16371

Lien : https://hal.archives-ouvertes.fr/hal-01389568

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Abstract

Optical feedback interferometry (OFI) sensors are experiencing a consistent increase in their applications to biosensing due to their contactless nature, low cost and compactness, features that fit very well with current biophotonics research and market trends. The present paper is a review of the work in progress at UPC-CD6 and LAAS-CNRS related to the application of OFI to different aspects of biosensing, both in vivo and ex vivo. This work is intended to present the variety of opportunities and potential applications related to OFI that are available in the field. The activities presented are divided into two main sensing strategies: The measurement of optical path changes and the monitoring of flows, which correspond to sensing strategies linked to the reconstruction of changes of amplitude from the interferometric signal, and to classical Doppler frequency measurements, respectively. For optical path change measurements, measurements of transient pulses, usual in biosensing, together with the measurement of large displacements applied to designing palliative care instrumentation for Parkinson disease are discussed. Regarding the Doppler-based approach, progress in flow-related signal processing and applications in real-time monitoring of non-steady flows, human blood flow monitoring and OFI pressure myograph sensing will be presented. In all cases, experimental setups are discussed and results presented, showing the versatility of the technique. The described applications show the wide capabilities in biosensing of the OFI sensor, showing it as an enabler of low-cost, all-optical, high accuracy biomedical applications.

138001
15478
26/11/2015

Real-time algorithm for versatile displacement sensors based on self-mixing interferometry

A.LUNA ARRIAGA, F.BONY, T.BOSCH

OSE

Rapport LAAS N°15478, doi 10.1109/JSEN.2015.2478755, Novembre 2015, 8p.

Lien : https://hal.archives-ouvertes.fr/hal-01226909

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Abstract

This paper presents a general displacement reconstruction algorithm for sensors based on self-mixing (SM) interferometry suitable to work at different optical feedback conditions. The approach relies on a robust phase observation through analytic signals for the fringe detection stage, while the motion of the pointed target is retrieved by a self-adapting filter in a piece-wise basis. The implementation for real-time calculations demonstrates the feasibility of robust SM sensors for different usage conditions without the need of modifying the base device configuration.

135696
15644
01/11/2015

A Fiber Fabry-Perot interferometer for geophysics applications

M.CATTOEN, F.LIZION, M.SULEIMAN, F.BOUDIN, J.CHERY, C.BRUNET, P.BERNARD, P.CHAWAH, A.SOURICE, G.PLANTIER, D.BOYER, A.CAVAILLOU, S.GAFFET, HC.SEAT

OSE, IDEA, LNCMI-T, Geoscience, CNRS, IPGP, LAUM, LSBB, CNRS

Manifestation avec acte : IEEE SENSORS 2015 du 01 novembre au 04 novembre 2015, Busan (Corée du sud), Novembre 2015, 4p. , N° 15644

Lien : https://hal.archives-ouvertes.fr/hal-01265963

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Abstract

A fiber interferometer interfaced to 3 geo-mechanical elements is presented for applications in geophysics. The fiber sensor is based on an extrinsic fiber Fabry-Perot interferometer (EFFPI) which incorporates a modulation scheme to lock the interferometer at quadrature and to enable displacement measurements below a quarter of the interrogating wavelength. It operates over a relatively large frequency dynamic of ~500000 with a precision better than 2 nm. The fiber interferometer is next interfaced to a differential hydrostatic long baseline inclinometer, a 3-axis borehole tiltmeter and a single-axis seismometer, respectively. Results obtained demonstrate that the fiber interferometrically-interrogated instruments exhibit performances equivalent to or even surpassing those of the reference instruments employed for comparison during their deployment to an underground test site since March 2012. Keywords—modulation-based extrinsic fiber Fabry-Perot interferometer; fiber optique hydrostatic inclinometer; fiber optique borehole tiltmeter; fiber optique seismometer

136102
15643
01/11/2015

A simple pendulum borehole tiltmeter based on a triaxial optical-fibre displacement sensor

P.CHAWAH, J.CHERY, F.BOUDIN, M.CATTOEN, HC.SEAT, G.PLANTIER, F.LIZION, A.SOURICE, P.BERNARD, C.BRUNET, D.BOYER, S.GAFFET

Geoscience, CNRS, OSE, LAUM, IDEA, IPGP, LSBB, CNRS

Revue Scientifique : Geophysical journal international, Vol.203, N°2, pp.1026-1038, Novembre 2015 , N° 15643

Lien : https://hal.archives-ouvertes.fr/hal-01265967

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Abstract

Sensitive instruments like strainmeters and tiltmeters are necessary for measuring slowly varying low amplitude Earth deformations. Nonetheless, laser and fibre interferometers are particularly suitable for interrogating such instruments due to their extreme precision and accuracy. In this paper, a practical design of a simple pendulum borehole tiltmeter based on laser fibre interferometric displacement sensors is presented. A prototype instrument has been constructed using welded borosilicate with a pendulum length of 0.85 m resulting in a main resonance frequency of 0.6 Hz. By implementing three coplanar extrinsic fibre Fabry-Perot in-terferometric probes and appropriate signal filtering, our instrument provides tilt measurements that are insensitive to parasitic deformations caused by temperature and pressure variations. This prototype has been installed in an underground facility (Rustrel, France) where results show accurate measurements of Earth strains derived from Earth and ocean tides, local hydro-logic effects, as well as local and remote earthquakes. The large dynamic range and the high sensitivity of this tiltmeter render it an invaluable tool for numerous geophysical applications such as transient fault motion, volcanic strain and reservoir monitoring

136100
15662
01/11/2015

Robust fringe detection based on bi-wavelet transform for self-mixing displacement sensor

O.BERNAL, HC.SEAT, U.ZABIT, F.SURRE, T.BOSCH

OSE, Riphah, City University

Manifestation avec acte : IEEE SENSORS 2015 du 01 novembre au 04 novembre 2015, Busan (Corée du sud), Novembre 2015, 10p. , N° 15662

Lien : https://hal.archives-ouvertes.fr/hal-01262273

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Abstract

A novel signal processing method based on custom-made Wavelet Transform (WT) is presented for robust detection of fringes contained in the interferometric signal of Self-Mixing (SM) laser diode sensors. It enables the measurement of arbitrarily-shaped vibrations even in the corruptive presence of speckle. Our algorithm is based on the pattern recognition capability of the customized WT for identifying SM fringes. Once the fringes have been correctly detected, phase unwrapping methods can be applied to retrieve the complete instantaneous phase of the SM signals. Here, the novelty consists in using two distinct mother wavelets Ψ r (t) and Ψ d (t) particularly designed to distinguish SM patterns as well as the displacement direction. The peaks, i.e. maxima of WT, then allow the detection of the fringes.

136237
15646
01/09/2015

Laser feedback interferometry: a tutorial on the self-mixing effect for coherent sensing

T.TAIMRE, M.NIKOLIC, K.BERTLING, Y.L.LIM, T.BOSCH, A.D.RAKIC

QUT, OSE

Revue Scientifique : Advances in Optics and Photonics, Vol.7, N°3, pp.570-631, Septembre 2015 , N° 15646

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Abstract

This tutorial presents a guided tour of laser feedback interferometry, from its origin and early development through its implementation to a slew of sensing applications, including displacement, distance, velocity, flow, refractive index, and laser linewidth measurement. Along the way, we provide a step-by-step derivation of the basic rate equations for a laser experiencing optical feedback starting from the standard Lang and Kobayashi model and detail their subsequent reduction in steady state to the excess-phase equation. We construct a simple framework for interferometric sensing applications built around the laser under optical feedback and illustrate how this results in a series of straightforward models for many signals arising in laser feedback interferometry. Finally, we indicate promising directions for future work that harnesses the self-mixing effect for sensing applications.

136123
15626
24/08/2015

Phase relationship of photodetected signals of an optical feedback interferometry sensor

J.AL ROUMY, J.PERCHOUX, T.BOSCH

OSE

Manifestation avec acte : Conference on Lasers and Electro-Optics Pacific Rim ( CLEO-PR ) 2015 du 24 août au 28 août 2015, Busan (Corée), Août 2015, 2p. , N° 15626

Lien : https://hal.archives-ouvertes.fr/hal-01259863

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Abstract

Optical Feedback Interferometry signals can be acquired by photodetection either from rear or front facet of the laser. We present a model that links both signals to the injection current. The comparison with experimental results validates the model.

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