Lockheed Martin Corporation

Michael Enoch

Anthony C Kowalczyk

Parmijit Samra

Larry H Capots

Kenneth John Triebes

An apparatus for generating an RF signal is provided includes a driver configured to generate a timing control for two optical signals. The apparatus further includes at least one optical pulse source configured to generate the two optical signals based on the timing control. In addition, the apparatus includes a photodetector configured to receive the two optical signals as input and further configured to generate an RF signal based on the two optical signals. A method for generating an RF signal is also provided.

Apparatus and method for generating an RF signal

A tunable photonic channelizer includes an optical signal generator and an optical modulator. The optical modulator receives a first optical signal as an input from the optical signal generator and modulates the first optical signal to create a second optical signal. The tunable photonic channelizer includes an optical filter that is selectively tunable. The optical filter receives the second optical signal, filters the second optical signal, provides a third optical signal as a filtered version of the second optical signal. The tunable photonic channelizer includes a feedback loop between the optical filter and the optical signal generator to provide temperature and/or environmental feedback from the optical filter to the optical signal generator to enable the first optical signal to float in relation to the temperature and/or environmental feedback.

Tunable photonic channelizer

An optical signal processing system is provided that includes a first light modulator for receiving, placing information on a first optical signal, and for producing a second optical signal. The second optical signal includes a desired signal portion and an undesired signal portion. The optical signal processing system includes a second light modulator that tunes a first optical pump signal to a Brillouin frequency that is less than, but corresponding to, a frequency of the undesired signal portion. The optical signal processing system includes a light conductor configured to receive as a first input the second optical signal and as a second input the first optical pump signal tuned to the Brillouin frequency. The optical signal processing system causes the first optical pump signal tuned to the Brillouin frequency to induce a Stimulated Brillouin Scattering effect at the light conductor to attenuate the undesired signal portion.

Optical signal processing systems and methods for amplification and/or attenuation

A frequency translator, a method, and a machine readable medium for performing frequency signal translations are disclosed. The frequency translator includes a modulator for modulating an optical pulse train with an input RF signal to generate an output optical pulse train having the amplitude information of the input RF signal at a plurality of times corresponding to the optical pulse train. In addition, the frequency translator includes a modulator for modulating the output optical pulse train by a digital cosine function having a desired target frequency to generate a translated optical signal. The frequency translator further includes a photodetector configured to generate an electrical waveform with the translated optical signal having the amplitude information of the input RF signal centered at the desired target frequency.

RF discrete time optical frequency translator

A laser communications system includes a wide-field sensor, configured to detect a first set of laser communications sources within a first field of view, a narrow-field sensor includes a tracking portion and a control portion configured to receive laser communications from a second set of laser communications sources within a second field of view, wherein the first field of view is larger than the second field of view, and wherein the second set of laser communications sources comprises at least a first source and a second source, and a redirection unit coupled to the narrow-field sensor configured to position the second field of view within the first field of view wherein the first receiving element is positioned in response to the first positioning signal for the first receiving element, and the second receiving element is positioned in response to the first positioning signal for the second receiving element.

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Placitas, NM, United States of America

Michael Enoch