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Undersea Laser Communication Using Polarization and Wavelength Modulation

a laser communication and wavelength modulation technology, applied in electromagnetic transmission, electrical equipment, transmission, etc., can solve the problem of limited state-of-the-art in underwater high data rate communication technology

Active Publication Date: 2016-08-25
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This approach achieves a significant increase in data rate through polarization and wavelength modulation, with measured data rates exceeding previous limitations, particularly in ocean-water conditions, by utilizing semiconductor lasers and high-sensitivity detectors, while maintaining efficient power usage and system performance.

Problems solved by technology

The state-of-the-art in technologies for underwater high data rate communications is currently limited.

Method used

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  • Undersea Laser Communication Using Polarization and Wavelength Modulation
  • Undersea Laser Communication Using Polarization and Wavelength Modulation
  • Undersea Laser Communication Using Polarization and Wavelength Modulation

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Embodiment Construction

[0031]The disclosed methods and systems below may be described generally, as well as in terms of specific examples and / or specific embodiments. For instances where references are made to detailed examples and / or embodiments, it should be appreciated that any of the underlying principles described are not to be limited to a single embodiment, but may be expanded for use with any of the other methods and systems described herein as will be understood by one of ordinary skill in the art unless otherwise stated specifically.

[0032]FIG. 1 is a flow chart of a communications method 10 that may be used for transmitting data underwater. Method 10 comprises, consists of, or consists essentially of the following steps. The first step 10a provides for emitting a series of pulses from a transmitter through water. Each pulse may comprise a plurality of electromagnetic component signals. Each component signal may have a fixed combination of wavelength and polarization state that differs from the w...

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Abstract

A communications method comprising the following steps: emitting a series of pulses from a transmitter through water, wherein each pulse comprises a plurality of electromagnetic component signals, wherein each component signal has a fixed combination of wavelength and polarization state that differs from the wavelength and polarization state combinations corresponding to the other component signals; encoding data onto each pulse by varying the amplitude of selected component signals of each pulse; receiving each pulse with a receiver; and retrieving the data by detecting the component signals based on the component signals' wavelength, polarization state, and amplitude.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims priority to U.S. Provisional Application No. 62 / 120,419, filed 25 Feb. 2015, titled “Undersea Laser Communication Using Polarization and Wavelength Modulation” (Navy Case 102540).FEDERALLY-SPONSORED RESEARCH AND DEVELOPMENT[0002]The United States Government has ownership rights in this invention. Licensing and technical inquiries may be directed to the Office of Research and Technical Applications, Space and Naval Warfare Systems Center, Pacific, Code 72120, San Diego, Calif., 92152; voice (619) 553-5118; ssc_pac_t2@navy.mil. Reference Navy Case Number 102540.BACKGROUND OF THE INVENTION[0003]The invention described herein relates to the field of underwater, high-data-rate communications. The state-of-the-art in technologies for underwater high data rate communications is currently limited. There is a need for an improved method and system for high-data-rate communications between underwater platforms.BRIEF DESCRIPTI...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H04B10/80H04B10/508
CPCH04B10/508H04B10/80H04B10/532H04B13/02
Inventor POIRIER, PETER MARSHALLLOVERN, MICHAEL GARRETTNEUNER, III, BURTON HAMILTON
Owner THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY