Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Joseph Coffaro"'
Publikováno v:
Laser Communication and Propagation through the Atmosphere and Oceans X.
Propagation of laser beams through a turbulent atmosphere over extended ranges can cause significant beam scintillation and wander which can degrade the effectiveness of a Free Space Optical (FSO) link. The use of a spectrally broadband laser light s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::750dea71ac2960f346715d2448ea2ee0
https://doi.org/10.1117/12.2595822
https://doi.org/10.1117/12.2595822
Publikováno v:
Laser Communication and Propagation through the Atmosphere and Oceans X.
Experiments were conducted at the TISTEF laser range to evaluate the atmospheric turbulence data of several instruments. A Scintec BLS900, BLS2000, SLS20, MZA DELTA, and an Applied Technologies SATI-3A sonic anemometer were deployed on the 1 kilomete
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e0df5f02b87527736a0f4a67ff73451d
https://doi.org/10.1117/12.2595356
https://doi.org/10.1117/12.2595356
Autor:
Jonathan Itschner, Brittany Lynn, Burton Neuner, Skylar Lilledahl, Joseph Coffaro, Ben Laxton
Publikováno v:
Ocean Sensing and Monitoring XIII.
This effort designed and tested new algorithms and deployable scintillometer hardware for ocean optical turbulence characterization. Novel features include a hand-deployable design, a non-laser optical source, a rapidly adjustable propagation length,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e2f634740f183cddbed789fe83a6031
https://doi.org/10.1117/12.2588721
https://doi.org/10.1117/12.2588721
Autor:
Robert Crabbs, Matthew Salfer-Hobbs, Christopher Smith, Bruce Berry, Joseph Coffaro, Larry C. Andrews, Ronald L. Philips
Publikováno v:
Laser Communication and Propagation through the Atmosphere and Oceans IX.
Atmospheric propagation experiments have been conducted over the 1km TISTEF laser range to examine the effects of turbulence, absorption and scattering on a supercontinuum laser beam. This supercontinuum laser beam has been band limited to transmit o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::01d9223617ffe9ed2fe9d25bfda4c5f4
https://doi.org/10.1117/12.2570399
https://doi.org/10.1117/12.2570399
Publikováno v:
Journal of the Optical Society of America A. 39:643
With appropriate processing techniques, sonic anemometry can provide useful insights into the strength and spectral shape of optical turbulence. Closed form propagation models and simulations require stationary optical turbulence statistics to make a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3cc0b5e0ec4191662a56475ab938f26f
https://doi.org/10.1364/josaa.441020
https://doi.org/10.1364/josaa.441020
Autor:
Jeremy Young, Antonio Oliver, Joseph Coffaro, Joseph Penano, Jason D. Schmidt, Michael Helle, Joshua Isaacs, Jason A. Tellez, Gregory DiComo, Vincent J. Urick, Larry B. Stotts
Publikováno v:
Optics Express. 29:25731
Optical Kerr effects induced by the propagation of high peak-power laser beams through real atmospheres have been a topic of interest to the nonlinear optics community for several decades. This paper proposes a new analytical model for predicting the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6d10dfeba3f256eb1966d393c162d733
https://doi.org/10.1364/oe.431884
https://doi.org/10.1364/oe.431884
Autor:
Melissa Beason, Larry C. Andrews, Robert Crabbs, Ronald L. Phillips, Joseph Coffaro, Jonathan Spychalsky, Bruce Berry
Publikováno v:
Laser Communication and Propagation through the Atmosphere and Oceans VIII.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8885c30cd58c3bf673523f56815ad571
https://doi.org/10.1117/12.2528050
https://doi.org/10.1117/12.2528050
Autor:
Larry C. Andrews, Franklin Titus, Bruce Berry, Ronald L. Phillips, Jonathan Spychalsky, Joseph Coffaro, Melissa Beason, Robert Crabbs, Frank Sanzone
Publikováno v:
Laser Communication and Propagation through the Atmosphere and Oceans VIII.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f9f153c0abf06193b0ba6c4cc23cb549
https://doi.org/10.1117/12.2526800
https://doi.org/10.1117/12.2526800
Autor:
Robert Crabbs, Melissa Beason, Joseph Coffaro, Franklin Titus, Bruce Berry, Larry C. Andrews, Jonathon Spychalski, Ronald L. Phillips, Frank Sanzone
Publikováno v:
Imaging and Applied Optics 2019 (COSI, IS, MATH, pcAOP).
The Rytov approximation is used with different initial beam radius of curvature in orthogonal directions to approximate optical refractivity with an anisotropic nonKolmogorov spectrum in weak turbulence. Results are compared to experimental data.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dc182dd06e27d54cd92e0bb0cd76b671
https://doi.org/10.1364/pcaop.2019.pth2d.2
https://doi.org/10.1364/pcaop.2019.pth2d.2
Autor:
Joseph Coffaro, Robert Crabbs, Jonathan Spychalsky, Bruce Berry, Christopher Smith, Larry C. Andrews, Franklin Titus, Sara B. Belichki, Frank Sanzone, Melissa Beason, Janet E. Shields, Ronald L. Phillips
Publikováno v:
Imaging and Applied Optics 2019 (COSI, IS, MATH, pcAOP).
A single pixel infrared camera is developed utilizing digital micromirror technology. The imager is applied to determination of atmospheric extinction and other meteorological parameters. Experimental evidence demonstrates agreement with forward-scat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::56f1f4b1c390207b20782b7d265a1beb
https://doi.org/10.1364/pcaop.2019.pth3c.5
https://doi.org/10.1364/pcaop.2019.pth3c.5