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Dispersive Fourier transformation for fast continuous single-shot measurements
Keisuke Goda,Bahram Jalali +1 more
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In this paper, the authors cover the principle of dispersive Fourier transformation and its implementation in diverse applications, such as optical rogue waves and rare cancer cells in blood, as well as their application in real-time instrumentation and measurement.Abstract:
It's challenging to measure non-repetitive events in real time in the field of instrumentation and measurement. Dispersive Fourier transformation is an emerging method that permits capture of rare events, such as optical rogue waves and rare cancer cells in blood. This Review article covers the principle of dispersive Fourier transformation and its implementation in diverse applications.read more
Citations
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Journal ArticleDOI
Instabilities, breathers and rogue waves in optics
TL;DR: Curious wave phenomena that occur in optical fibres due to the interplay of instability and nonlinear effects are reviewed in this article, where the authors propose a method to detect such phenomena.
Journal ArticleDOI
Deep Learning in Label-free Cell Classification
Claire Lifan Chen,Ata Mahjoubfar,Ata Mahjoubfar,Li Chia Tai,Ian K. Blaby,Allen Huang,Kayvan Niazi,Kayvan Niazi,Bahram Jalali +8 more
TL;DR: This work integrates feature extraction and deep learning with high-throughput quantitative imaging enabled by photonic time stretch, achieving record high accuracy in label-free cell classification.
Journal ArticleDOI
Real-Time Observation of the Buildup of Soliton Molecules.
TL;DR: The first observation, to the best of the knowledge, of the entire buildup process of soliton molecules (SMs) in a mode-locked laser is reported and the evolution of pulses in the raised RO stage follows a law that only the strongest one can ultimately survive.
Journal ArticleDOI
Measurement technologies for precision positioning
Wei Gao,Seung-Woo Kim,Harald Bosse,Han Haitjema,Y.L. Chen,X.D. Lu,Wolfgang Knapp,Albert Weckenmann,William T. Estler,H. Kunzmann +9 more
TL;DR: In this paper, a review of measurement technologies for precision positioning in manufacturing industries is presented, followed by a discussion on traceability and standards, and some advanced applications of measurement technology for manufacturing industries.
Journal ArticleDOI
Observation of soliton explosions in a passively mode-locked fiber laser
TL;DR: In this article, the authors identify clear explosion signatures in measurements of shot-to-shot spectra of a Yb-doped mode-locked fiber laser that is operating in a transition regime between stable and noise-like emission.
References
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Journal ArticleDOI
Spatial chirp in ultrafast optics
TL;DR: In this article, the authors compare two definitions of spatial chirp, which they call "spatial dispersion" and "frequency gradient" for Gaussian beams and pulses, and the relationship between the two definitions is found to be analogous to that between the definitions of time and frequency domains.
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Amplified Dispersive Fourier-Transform Imaging for Ultrafast Displacement Sensing and Barcode Reading
TL;DR: In this article, the authors describe a novel ultrafast barcode reader and displacement sensor that employs internally-amplified dispersive Fourier transformation, which amplifies and simultaneously maps the spectrally encoded barcode into a temporal waveform.
Journal ArticleDOI
Amplified dispersive Fourier-transform imaging for ultrafast displacement sensing and barcode reading
TL;DR: In this paper, the authors describe a novel ultrafast barcode reader and displacement sensor that employs internally amplified dispersive Fourier transformation, which amplifies and simultaneously maps the spectrally encoded barcode into a temporal waveform.
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Principles of parametric temporal imaging. II. System performance
C.V. Bennett,Brian H. Kolner +1 more
TL;DR: In this article, the performance of the temporal imaging system with dispersive propagation and quadratic phase modulation in time is studied. But, the authors focus on time lenses produced by the parametric mixing of the dispersed input signal with a linearly chirped optical pump pulse because of the broad bandwidth and thus fine temporal resolution that can be obtained.
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High-speed nanometer-resolved imaging vibrometer and velocimeter
TL;DR: In this article, a laser vibrometer that performs high-speed multidimensional imaging-based vibration and velocity measurements with nanometer-scale axial resolution without the need for beam scanning is presented.