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Title: Radio frequency passband signal generation using photonics

Abstract

Devices, methods and systems for generating wideband, high-fidelity arbitrary radio frequency (RF) passband signals are described. A voltage tunable optical filter for arbitrary RF passband signal generation includes a first input configured to receive a broadband optical pulse train, a second input configured to receive a first control voltage representative of an amplitude signal, an electrooptic modulator to receive the broadband optical pulse train and the first control voltage, to modulate the broadband optical pulse train in accordance with the amplitude signal, and to produce two complementary optical outputs that form two arms of an interferometer, an optical delay component to impart an optical path difference into one of the complementary outputs of the electrooptic modulator, and a combiner or a splitter to receive two complementary optical outputs of the electrooptic modulator after impartation of the optical path difference and to produce an output interference pattern of fringes.

Inventors:
; ; ; ;
Issue Date:
Research Org.:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1860213
Patent Number(s):
11209714
Application Number:
16/751,839
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA)
Patent Classifications (CPCs):
G - PHYSICS G02 - OPTICS G02B - OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
G - PHYSICS G02 - OPTICS G02F - DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING
DOE Contract Number:  
AC52-07NA27344
Resource Type:
Patent
Resource Relation:
Patent File Date: 01/24/2020
Country of Publication:
United States
Language:
English

Citation Formats

Gowda, Apurva Shantharaj, Chan, Jacky Chak-Kee, DeVore, Peter Thomas Setsuda, Perlmutter, David Simon, and Chou, Jason Thomas. Radio frequency passband signal generation using photonics. United States: N. p., 2021. Web.
Gowda, Apurva Shantharaj, Chan, Jacky Chak-Kee, DeVore, Peter Thomas Setsuda, Perlmutter, David Simon, & Chou, Jason Thomas. Radio frequency passband signal generation using photonics. United States.
Gowda, Apurva Shantharaj, Chan, Jacky Chak-Kee, DeVore, Peter Thomas Setsuda, Perlmutter, David Simon, and Chou, Jason Thomas. Tue . "Radio frequency passband signal generation using photonics". United States. https://www.osti.gov/servlets/purl/1860213.
@article{osti_1860213,
title = {Radio frequency passband signal generation using photonics},
author = {Gowda, Apurva Shantharaj and Chan, Jacky Chak-Kee and DeVore, Peter Thomas Setsuda and Perlmutter, David Simon and Chou, Jason Thomas},
abstractNote = {Devices, methods and systems for generating wideband, high-fidelity arbitrary radio frequency (RF) passband signals are described. A voltage tunable optical filter for arbitrary RF passband signal generation includes a first input configured to receive a broadband optical pulse train, a second input configured to receive a first control voltage representative of an amplitude signal, an electrooptic modulator to receive the broadband optical pulse train and the first control voltage, to modulate the broadband optical pulse train in accordance with the amplitude signal, and to produce two complementary optical outputs that form two arms of an interferometer, an optical delay component to impart an optical path difference into one of the complementary outputs of the electrooptic modulator, and a combiner or a splitter to receive two complementary optical outputs of the electrooptic modulator after impartation of the optical path difference and to produce an output interference pattern of fringes.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2021},
month = {12}
}

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