Signal digitizing system and method based on amplitude-to-time optical mapping
Abstract
A signal digitizing system and method based on analog-to-time optical mapping, optically maps amplitude information of an analog signal of interest first into wavelength information using an amplitude tunable filter (ATF) to impress spectral changes induced by the amplitude of the analog signal onto a carrier signal, i.e. a train of optical pulses, and next from wavelength information to temporal information using a dispersive element so that temporal information representing the amplitude information is encoded in the time domain in the carrier signal. Optical-to-electrical conversion of the optical pulses into voltage waveforms and subsequently digitizing the voltage waveforms into a digital image enables the temporal information to be resolved and quantized in the time domain. The digital image may them be digital signal processed to digitally reconstruct the analog signal based on the temporal information with high fidelity.
- Inventors:
- Issue Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1167204
- Patent Number(s):
- 8934058
- Application Number:
- 14/092,763
- Assignee:
- Lawrence Livermore National Security, LLC (Livermore, CA)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04B - TRANSMISSION
- DOE Contract Number:
- AC52-07NA27344
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2013 Nov 27
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION
Citation Formats
Chou, Jason, Bennett, Corey V, and Hernandez, Vince. Signal digitizing system and method based on amplitude-to-time optical mapping. United States: N. p., 2015.
Web.
Chou, Jason, Bennett, Corey V, & Hernandez, Vince. Signal digitizing system and method based on amplitude-to-time optical mapping. United States.
Chou, Jason, Bennett, Corey V, and Hernandez, Vince. Tue .
"Signal digitizing system and method based on amplitude-to-time optical mapping". United States. https://www.osti.gov/servlets/purl/1167204.
@article{osti_1167204,
title = {Signal digitizing system and method based on amplitude-to-time optical mapping},
author = {Chou, Jason and Bennett, Corey V and Hernandez, Vince},
abstractNote = {A signal digitizing system and method based on analog-to-time optical mapping, optically maps amplitude information of an analog signal of interest first into wavelength information using an amplitude tunable filter (ATF) to impress spectral changes induced by the amplitude of the analog signal onto a carrier signal, i.e. a train of optical pulses, and next from wavelength information to temporal information using a dispersive element so that temporal information representing the amplitude information is encoded in the time domain in the carrier signal. Optical-to-electrical conversion of the optical pulses into voltage waveforms and subsequently digitizing the voltage waveforms into a digital image enables the temporal information to be resolved and quantized in the time domain. The digital image may them be digital signal processed to digitally reconstruct the analog signal based on the temporal information with high fidelity.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 13 00:00:00 EST 2015},
month = {Tue Jan 13 00:00:00 EST 2015}
}
Works referenced in this record:
Optoelectronic analog-to-digital converter using wavelength division multiplexing
patent, August 2000
- Frankel, Michael Y.
- US Patent Document 6,100,831
Generation of M-ary digital signaling constellations directly at lightwave frequencies
patent, March 2006
- Wilson, Kenneth E.
- US Patent Document 7,019,882
Optically sampled analog-to-digital converters
journal, January 2001
- Juodawlkis, P. W.; Twichell, J. C.; Betts, G. E.
- IEEE Transactions on Microwave Theory and Techniques, Vol. 49, Issue 10
Photonic analog-to-digital converters
journal, January 2007
- Valley, George C.
- Optics Express, Vol. 15, Issue 5