Relationship between axial resolution and signal-to-noise ratio in optical coherence tomography [PDF]
Optics Letters, 2022 In optical coherence tomography (OCT), axial resolution and signal-to-noise ratio (SNR) are typically viewed as uncoupled parameters. We show that this is true only for mirror-like surfaces and that in diffuse scattering samples such as biological tissues there is an inherent coupling between axial resolution and measurement SNR.
Danielle J. Harper, Benjamin J. Vakoc
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Estimation Uncertainties in the Optical Signal-to-Noise Ratio Network Optimization [PDF]
Journal of Microwaves, Optoelectronics and Electromagnetic Applications, 2016 In this work, we investigate the effects of estimation uncertainties in the optimization of the optical signal-to-noise ratio (OSNR) at the wavelength division multiplexing (WDM) optical networks.
Fábio R. Durand +3 more
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Computational signal-to-noise ratio analysis for optical quadrature microscopy
Optics Express, 2009 Optical quadrature microscopy (OQM) was invented in 1997 to reconstruct a full-field image of quantitative phase, and has been used to count the number of cells in live mouse embryos. Here we present a thorough SNR analysis that incorporates noise terms for fluctuations in the laser, aberrations within the individual paths of the Mach-Zehnder ...
Charles A. DiMarzio, William C. Warger
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Signal-to-Noise Ratio of Brillouin Grating Measurement with Micrometer-Resolution Optical Low Coherence Reflectometry [PDF]
Sensors, 2020 Signal-dependent speckle-like noise was the dominant noise in a Brillouin grating measurement with micrometer-resolution optical low coherence reflectometry (OLCR).
Kazumasa Takada +2 more
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Analysis of the signal-to-noise ratio in the optical differentiation wavefront sensor
Optics Express, 2003 High resolution wavefront sensors are devices with a great practical interest since they are becoming a key part in an increasing number of applications like extreme Adaptive Optics. We describe the optical differentiation wavefront sensor, consisting of an amplitude mask placed at the intermediate focal plane of a 4-f setup.
Vidal F. Canales +2 more
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Versatile Full-Field Optical Coherence Tomography with Adjustable Transmission-to-Reflection Ratio and Enhanced Signal-to-Noise Ratio [PDF]
arXivTraditional full-field optical coherence tomography (FF-OCT) is effective for rapid cross-sectional imaging but often suffers from incoherent signals due to imbalanced light intensities between the sample and reference arms. While the high-throughput dark-field (HTDF) FF-OCT technique employs an asymmetric beamsplitter (BS) to achieve an asymmetric ...
Youlong Fan +4 more
arxiv +3 more sources
In-Band Estimation of Optical Signal-to-Noise Ratio From Equalized Signals in Digital Coherent Receivers [PDF]
IEEE Photonics Journal, 2014 We propose a novel method of in-band estimation of optical signal-to-noise ratio (OSNR) using a digital coherent receiver, where OSNR is determined from second- and fourth-order statistical moments of equalized signals in any modulation format.
Md. Saifuddin Faruk +2 more
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Comparison of optical biometry versus ultrasound biometry in cases with borderline signal-to-noise ratio [PDF]
Clinical Ophthalmology, 2018 Tao Ming Thomas Chia,1 Minh T Nguyen,2 Hoon C Jung3,4 1Roski Eye Institute, University of Southern California, Los Angeles, CA, USA; 2Department of Ophthalmology and Visual Sciences, University of Wisconsin School of Medicine and Public Health, Madison,
Chia TMT, Nguyen MT, Jung HC
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Parameter Simulation and Design of an Airborne Hyperspectral Imaging LiDAR System
Remote Sensing, 2021 With continuous technological development, the future development trend of LiDAR in the field of remote sensing and mapping is to obtain the elevation and spectral information of ground targets simultaneously.
Liyong Qian +6 more
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Amplification and phase noise transfer of a Kerr microresonator soliton comb for low phase noise THz generation with a high signal-to-noise ratio [PDF]
Optics Express Vol. 30, Issue 1, pp. 318-325 (2022), 2021 Optical injection locking is implemented to faithfully transfer the phase noise of a dissipative Kerr microresonator soliton comb in addition to the amplification of the Kerr comb. Unlike Er-doped fiber and semiconductor optical amplifiers, the optical injection locking amplifies the comb mode without degrading the optical signal-to-noise ratio.
arxiv +1 more source