Harris Corporation

John DeSalvo

Michael Ray Lange

Edward Tegge

Charles Michael Newton

Charles Franklin Middleton, Iv

Gregory Michael Shimkaveg

Elliott J Grafer

William Thomas Silfvast

John Dodzweit

Randall K Morse

Catheryn D Logan

Mark D Koontz

Scott Bricker

Jane Claire White

Alan Williams

A communications device may include a local device, a remote device, and a multi-mode optical fiber coupled between the local device and the remote device. The local device may include a local spatial optical mux/demux coupled to the multi-mode optical fiber and having first and second local optical outputs and first and second local optical inputs, and a local electro-optic E/O modulator coupled to the second local optical input. The remote device may include a remote spatial optical mux/demux coupled to the multi-mode optical fiber, and a remote E/O modulator configured to generate a modulated signal onto a first remote optical output based upon modulating the first optical carrier signal from a first remote optical input responsive to a radio frequency (RF) electrical input signal.

Electro-optic communications device with frequency conversion and multi-mode optical fiber and related methods

A photonic frequency converting transceiver may include a laser, and a downconverter receiver branch including a first optical modulator optically coupled to the laser and configured to modulate laser light based upon an RF input signal and a first optical bandpass filter. An upconverter transmitter branch may include a second optical modulator optically coupled to the laser and configured to modulate laser light based upon an intermediate frequency input signal, and a second optical bandpass filter. A shared local oscillator branch may include a third optical modulator optically coupled to the laser and configured to modulate laser light based upon a local oscillator signal, and a third optical bandpass filter. The transceiver may further include photodetectors optically coupled to the optical bandpass filters to generate a downconverted intermediate frequency output signal and an upconverted RF output signal.

Photonic frequency converting transceiver and related methods

A method is provided for decontaminating biological pathogens residing in an enclosure of an electronic device. The method includes: identifying materials used to encase the enclosure of the electronic device; tailoring x-ray radiation to penetrate the materials encasing the enclosure; and directing x-ray radiation having a diffused radiation angle towards the electronic device.

System and method for non-destructive decontamination of sensitive electronics using soft x-ray radiation

System and method for non-destructive decontamination of sensitive electronics using soft X-ray radiation

A multimode wavelength division multiplexing (WDM) network transceiver and method includes a plurality of optical transmitters and a multiplexer operatively connected to each optical transmitter for receiving optical communications signals and multiplexing the signals into a multimode wavelength division multiplexed optical communications signal. A demultiplexer receives a multimode wavelength division multiplexed optical communications signal and demultiplexes the signal into a plurality of demultiplexed optical communications signals that are then received and detected within a plurality of optical receivers.

Network transceiver for extending the bandwidth of optical fiber-based network infrastructure

An integrated, optically amplified receiver includes an optically pumped optical preamplifier for receiving, generally, wavelength division multiplexed optical communication signal over an optical communications line. A PIN photodetector receives the optical communication signal as a filtered demultiplexed signal from the optical preamplifier and converts the optical communication signal into an electrical communication signal. An amplifier circuit amplifies the electrical communication signal for digital retiming or demodulation. A housing or printed circuit card assembly contains the optical preamplifier, filter or demultiplexer, PIN photo detector and amplifier circuit as an integrated receiver unit.

Optically amplified receiver

The system and method of the present invention is operative to monitor the performance of an optical communications channel. An optical splitter splits a wavelength division multiplexed (WDM) optical communications signal into a low power WDM signal onto a back-up path, where a tunable filter sweeps the optical communications channels, while a monitoring circuit monitors the optical communications channels for performance. Optical power can be stored and subsequently displayed, providing an optical spectrum analysis of the signal.

WDM channel monitoring system and method

A laser driver circuit includes an injection laser diode. A current source control loop circuit is connected to the injection laser diode and establishes a fixed current through the injection laser diode. A voltage switcher circuit is connected to the injection laser diode and current source control loop circuit and adapted to receive a fixed supply voltage and convert inductively the supply voltage down to a forward voltage to bias the injection laser diode and produce an optical fiber coupled laser output having minimized power losses.

Low power laser driver

An optically amplified back-up receiver includes an optical splitter for receiving a wavelength division multiplexed (WDM) optical communications signal by splitting the signal into a low power WDM optical signal onto a back-up path where it is amplified and an optical signal of desired wavelength selected. A PIN detector receives the optical signal at the desired wavelength and converts the optical signal into an electrical communications signal.

Growing community of inventors

Satellite Beach, FL, United States of America

John DeSalvo