USA As Represented by Secretary of the Navy

Burton Hamilton Neuner, Iii

David T Wayne

Michael Garrett Lovern

Peter M Poirier

Paul David Swanson

Ayax D Ramirez

Ryan P Lu

Nghia Tran

Alexandru Hening

Kyle Robert Drexler

Benjamin Laxton

Dusan Radosevic

John Stephen deGrassie

Michael W Pfetsch

Skylar D Lilledahl

Jesus Rodolfo Perez Cuarenta

Bienvenido Melvin Pascoguin

A digital adaptive optics encoder module includes a collection lens assembly, an input mounting flange, a collimating lens, a bandpass filter, digital adaptive optic elements, a refocusing lens, an output mounting flange, a housing, a focal plane array, a compute module, and a computing device. The collection lens assembly includes a moveable sub-lens and an entrance lens. The focal plane array measures, records, and transmits light data to a compute module. The compute module is connected to the focal plane array to receive the light data and transmit instructions to autofocus the collection lens assembly based on the light data and a storage device capable of sending and receiving the light data and storing the instructions. The computing device is capable of receiving and recording light data and images produced by the digital adaptive optics encoder module.

Electronically focusable digital adaptive optics encoder module

A device for communications comprising a power interconnect board, an acoustic board electrically connected to the processor board, a radio frequency board electrically connected to the processor board, and an optical board electrically connected to the power interconnect board.

Radio frequency optical acoustic communication modem

An optical interrogator for illuminating an object comprising a laser, a splitter, an optical polarizing element, and an optical recombiner. The laser is configured to generate a laser pulse, which the splitter splits into first, second, third, fourth, fifth, and sixth laser segments such that each of the laser segments are separated by a time delay on the order of nanoseconds between each laser segment. The optical polarizing element is positioned so as to respectively polarize the first, second, third, fourth, fifth, and sixth laser segments with a 0&#xb0; linear polarization, a 45&#xb0; linear polarization, a 90&#xb0; linear polarization, a 135&#xb0; linear polarization, a right-handed, circular polarization (RHCP), and a left-handed, circular polarization (LHCP). The optical recombiner combines the polarized laser segments into a train of co-aligned pulses for illuminating the object.

Optical interrogator for measuring polarization properties

A retroreflective optical system for creating a passive optical tag in an absence of electrical power, involving: a retroreflector having a surface and a retroreflective element disposed in relation to the surface, the retroreflective element configured to: passively impart a unique signature in relation to incoming light by using at least one of spectral filtration and color filtration, whereby a plasmonic response is effectible; and reflect outgoing light having the unique signature; and an optical device having an input aperture, the optical device disposed at a distance from the retroreflector and configured to transmit the incoming light and the outgoing light.

Retroreflective optical system and methods

A system comprises a tracking electromagnetic beam generator, a retro-reflecting device, a signal generator, a communication electromagnetic beam generator and a receiver. The tracking electromagnetic beam generator transmits a tracking electromagnetic beam. The retro-reflecting device reflects the tracking electromagnetic beam toward the tracking electromagnetic beam generator. The signal generator generates a communication signal. The communication electromagnetic beam generator transmits a communication electromagnetic beam, based on the communication signal, to the retro-reflecting device. The receiver receives a portion of the communication electromagnetic beam as reflected from the retro-reflecting device.

System and method for line-of-sight optical broadcasting using beam divergence and an orbiting or airborne corner cube reflector

A system and method involve propagating, from one or more optical sources connected to a platform, more than one optical signal through a surrounding medium towards a reflective surface. Reflected optical signals, representing the propagated optical signals reflected off of the reflective surface, are then detected using a detection system coupled to the platform. An ideal optical wavelength is then selected for optical communication from the platform within the surrounding medium based upon one or more characteristics of the detected reflected optical signals.

Wavelength optimization for free-space optical communications

Systems and methods for wavelength optimization for underwater optical communication can include a plurality of n lasers having different wavelengths &#x3bb;for i=1 to n, a beam splitter and a corner retro-reflector. The plurality of n lasers can simultaneously illuminate the beam splitter along a coincident axis. The plurality of n lasers can be selectively blocked so that only one laser wavelength &#x3bb;at a time impinges on the beam splitter. A portion passes through the beam splitter to establish a reference signal, while the remainder is reflected off the corner retro-reflector. A portion of return illumination passes through the beam splitter to establish a return signal. The process can be repeated for each of n lasers for i=1 to n. The &#x3bb;wavelength where the normalized signal-to-noise differential between the reference signal and return signal is the minimum can be the optimum communication wavelength.

Wavelength optimization for underwater optical communications

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.

Growing community of inventors

San Diego, CA, United States of America

Burton Hamilton Neuner, Iii