Free-space optical channel characterization in the maritime environment

Juarez, Juan C.; Sluz, Joseph E.; Nelson, Charles; Airola, Marc B.; Fitch, Michael J.; Young, David W.; Terry, David H.; Davidson, F.; Rottier, J. Ross; Sova, Raymond M.

doi:10.1117/12.852645

Cited by 9 publications

(12 citation statements)

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“…2(b)] was used to capture the spatial profile of the propagating IR laser beam. From the environmental characterizations, the turbulence conditions were estimated to be relatively stable over each data run (see Section 4) and in line with analysis from [2]. This atmospheric stability for each run allows for reasonable comparisons of the data as a function of range.…”

Section: Ln Pdf Modelmentioning

confidence: 92%

“…As W ST is a function of C 2 n , the C 2 n that gave the best fit to W ST was determined and then averaged over the three distances presented. This estimation procedure is similar to the one utilized in [2]. Additionally, as performed in [2], we analyzed the air temperature located at 5 m above the water and sea water intake temperature (SWIT) located just below the surface for each data run.…”

Section: Methodsmentioning

confidence: 99%

“…This estimation procedure is similar to the one utilized in [2]. Additionally, as performed in [2], we analyzed the air temperature located at 5 m above the water and sea water intake temperature (SWIT) located just below the surface for each data run. The T AIR − T SWIT difference varied approximately between negative 1 and negative 2 degrees Celsius for Case I and between zero and positive 1.5 degrees Celsius for Case II.…”

Section: Methodsmentioning

confidence: 99%

“…Figure 2 illustrates the experimental setup, showing the location of the detectors on the research vessel as well as the screen used for filming the spatial profile of the propagating laser beam. Additional fine detail of the experimental setup as well as environmental and channel characterization and analysis are presented in [2]; highlights are repeated here for clarity. Specifically, during tests, the IR (1550 nm) laser beam center was locked between the 2.54 cm power-in-fiber adaptive optics (PIF AO Fig.…”

Section: Ln Pdf Modelmentioning

confidence: 99%

“…In 2009, the Johns Hopkins University and Johns Hopkins University Applied Physics Laboratory initiated and executed an internal research and development effort to assess, demonstrate, and advance hybrid RF/optical communication links in the maritime environment. This research effort was successful and has been described at length in a number of references, see [2,[5][6][7]. In this paper, we focus specifically on the probability density function (PDF) of the laser beam intensity in comparison with theoretical models.…”

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confidence: 99%

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Probability density functions of power-in-bucket and power-in-fiber for an infrared laser beam propagating in the maritime environment

et al. 2013

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Irradiance fluctuations of an infrared laser beam from a shore-to-ship data link ranging from 5.1 to 17.8 km are compared to lognormal (LN), gamma-gamma (GG) with aperture averaging, and gamma-Laguerre (GL) distributions. From our data analysis, the LN and GG probability density function (PDF) models were generally in good agreement in near-weak to moderate fluctuations. This was also true in moderate to strong fluctuations when the spatial coherence radius was smaller than the detector aperture size, with the exception of the 2.54 cm power-in-bucket (PIB) where the LN PDF model fit best. For moderate to strong fluctuations, the GG PDF model tended to outperform the LN PDF model when the spatial coherence radius was greater than the detector aperture size. Additionally, the GL PDF model had the best or next to best overall fit in all cases with the exception of the 2.54 cm PIB where the scintillation index was highest. The GL PDF model also appears to be robust for off-of-beam center laser beam applications.

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Section: Ln Pdf Modelmentioning

confidence: 92%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Ln Pdf Modelmentioning

confidence: 99%

mentioning

confidence: 99%

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Probability density functions of power-in-bucket and power-in-fiber for an infrared laser beam propagating in the maritime environment

et al. 2013

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Performance of differential phase shift keying maritime laser communication over log-normal distribution turbulence channel

Qiao

Yan

et al. 2021

Optoelectron. Lett.

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Scintillation reduction in pseudo Multi-Gaussian Schell Model beams in the maritime environment

Nelson

Avramov-Zamurovic

Korotkova

et al. 2016

Optics Communications

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Irradiance fluctuations of a pseudo Multi-Gaussian Schell Model beam propagating in the maritime environment is explored as a function of spatial light modulator cycling rate and estimated atmospheric turnover rate. Analysis of the data demonstrates a strong negative correlation between the scintillation index of received optical intensity and cycling speed for the estimated atmospheric turnover rate.

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Free-space optical channel characterization in the maritime environment

Cited by 9 publications

References 0 publications

Probability density functions of power-in-bucket and power-in-fiber for an infrared laser beam propagating in the maritime environment

Probability density functions of power-in-bucket and power-in-fiber for an infrared laser beam propagating in the maritime environment

Performance of differential phase shift keying maritime laser communication over log-normal distribution turbulence channel

Scintillation reduction in pseudo Multi-Gaussian Schell Model beams in the maritime environment

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