Self-Mixing Thin-Slice Solid-State Laser Metrology

Otsuka, Kenju

doi:10.3390/s110202195

Cited by 62 publications

(49 citation statements)

References 92 publications

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“…PHYSICAL REVIEW A shifted optical feedback has been used in metrology [5], for example in self-mixing Laser Doppler Velocimetry (LDV) [6][7][8] and in Laser Optical Feedback Imaging (LOFI) [9][10][11].…”

Section: Nonlinear Modification Of the Laser Noise Power Spectrum Indmentioning

confidence: 99%

Nonlinear modification of the laser noise power spectrum induced by frequency-shifted optical feedback

et al. 2016

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In this article, we study the non-linear coupling between the stationary (i.e. the beating modulation signal) and transient (i.e. the laser quantum noise) dynamics of a laser subjected to frequency shifted optical feedback. We show how the noise power spectrum and more specifically the relaxation oscillation frequency of the laser are modified under different optical feedback condition. Specifically we study the influence of (i) the amount of light returning to the laser cavity and (ii) the initial detuning between the frequency shift and intrinsic relaxation frequency. The present work shows how the relaxation frequency is related to the strength of the beating signal and the shape of the noise power spectrum gives an image of the Transfer Modulation Function (i.e. of the amplification gain) of the nonlinear-laser dynamics.The theoretical predictions, confirmed by numerical resolutions, are in good agreements with the experimental data.

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Section: Nonlinear Modification Of the Laser Noise Power Spectrum Indmentioning

confidence: 99%

Nonlinear modification of the laser noise power spectrum induced by frequency-shifted optical feedback

et al. 2016

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“…The self-mixing interference has advantages of low dependence on the coherence length of the laser and the use of a single-mode or multimode laser as the light source [7]. Therefore, the applications of the SMI have been popularized in many fields, including metrology [8], laser parameters [9], terahertz imaging [10], velocimeter [11] and biomedical signals sensing [12]. Recently, Fathi M. T. and Donati S. [13,14] presented a method to simultaneously determine thickness and refractive index using self-mixing interference.…”

Section: Refractive Indexmentioning

confidence: 99%

Refractive Index Measurement With High Precision by a Laser Diode Self-Mixing Interferometer

et al. 2015

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A new method based on laser diode self-mixing interference effect for refractive index measurement is demonstrated. It employs a simple translation method to measure the optical phase shift as a function of the moving distance of the sample. The refractive index is determined by analyzing fringe number of self-mixing signals with respect to the moving distance and incidence angle, with an accuracy of 0.004, experimentally. Interestingly, the setting error of the proposed system can be effectively decreased by modifying incidence angle. This method also shows the advantage of large measurable range of refractive index.

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“…The SM effect leads to a precise and accurate metrology instrument for different purposes, such as distance measurements, 1 vibration detection, 2 and velocity characterization for solids, 3 liquids, 4 and plasmas. 5 Gas targets are used for a number of accelerator based experiments, as well as for beam diagnostic purposes.…”

Section: Introductionmentioning

confidence: 99%

Laser diode self-mixing interferometry for velocity measurements

2015

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A diode laser velocimeter based on laser self-mixing has been developed and characterized as a reliable, precise, comparably cheap, and compact monitor. The resolution of this sensor at different incident angles and for a variety of solid and liquid targets moving at velocities between 0.1 and 50 m∕s is presented. This includes a theoretical analysis of the underlying measurement principle, highlighting possibilities to extend the measurement capabilities to even higher velocities by altering the sensor design. Finally, an outlook on future applications of the sensor for detailed studies of supersonic gas jets used in beam diagnostics and atomic physics applications is given. © The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

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Self-Mixing Thin-Slice Solid-State Laser Metrology

Cited by 62 publications

References 92 publications

Nonlinear modification of the laser noise power spectrum induced by frequency-shifted optical feedback

Nonlinear modification of the laser noise power spectrum induced by frequency-shifted optical feedback

Refractive Index Measurement With High Precision by a Laser Diode Self-Mixing Interferometer

Laser diode self-mixing interferometry for velocity measurements

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