scholarly journals RF and microwave variable waveform generator based on photonics with an integrated 49GHz FSR Kerr micro-comb source

2021 ◽  
Author(s):  
David Moss
Keyword(s):  
High Performance ◽  
Free Spectral Range ◽  
Duty Ratio ◽  
Slope Ratio ◽  
Waveform Generator ◽  
Arbitrary Waveform Generator ◽  
Broad Bandwidth ◽  
Waveform Generation ◽  
Arbitrary Waveform ◽  
Good Agreement

Abstract We report a photonic-based radio frequency (RF) arbitrary waveform generator (AWG) using a soliton crystal micro-comb source with a free spectral range (FSR) of 48.9 GHz. The comb source provides over 80 wavelengths, or channels, that we use to successfully achieve arbitrary waveform shapes including square waveforms with a tunable duty ratio ranging from 10–90%, sawtooth waveforms with a tunable slope ratio of 0.2 to 1, and a symmetric concave quadratic chirp waveform with an instantaneous frequency of sub GHz. We achieve good agreement between theory and experiment, validating the effectiveness of this approach towards realizing high-performance, broad bandwidth, nearly user-defined RF waveform generation.

scholarly journals RF arbitrary waveform generator

2020 ◽  
Author(s):  
David Moss
Keyword(s):  
High Performance ◽  
Free Spectral Range ◽  
Duty Ratio ◽  
Slope Ratio ◽  
Waveform Generator ◽  
Arbitrary Waveform Generator ◽  
Broad Bandwidth ◽  
Waveform Generation ◽  
Arbitrary Waveform ◽  
Good Agreement

We report a photonic-based radio frequency (RF) arbitrary waveform generator (AWG) using a soliton crystal micro-comb source with a free spectral range (FSR) of 48.9 GHz. The comb source provides over 80 wavelengths, or channels, that we use to successfully achieve arbitrary waveform shapes including square waveforms with a tunable duty ratio ranging from 10% to 90%, sawtooth waveforms with a tunable slope ratio of 0.2 to 1, and a symmetric concave quadratic chirp waveform with an instantaneous frequency of sub GHz. We achieve good agreement between theory and experiment, validating the effectiveness of this approach towards realizing high-performance, broad bandwidth, nearly user-defined RF waveform generation.

Photonic radio frequency arbitrary waveform generator based on an integrated 49GHz FSR Kerr micro-comb source

2020 ◽  
Author(s):  
David Moss
Keyword(s):  
Radio Frequency ◽  
High Performance ◽  
Free Spectral Range ◽  
Duty Ratio ◽  
Waveform Generator ◽  
Arbitrary Waveform Generator ◽  
Broad Bandwidth ◽  
Waveform Generation ◽  
Arbitrary Waveform ◽  
Good Agreement

We report a photonic-based radio frequency (RF) arbitrary waveform generator (AWG) using a soliton crystal micro-comb source with a free spectral range (FSR) of 48.9 GHz. We successfully achieve arbitrary shapes including square waveforms with a tunable duty ratio ranging from 10% to 90%, sawtooth waveforms with a tunable slope ratio of 0.2 to 1, and a symmetric concave quadratic chirp waveform with an instantaneous frequency of sub GHz. We achieve good agreement between theory and experiment, validating the effectiveness of this approach towards realizing high-performance, broad bandwidth, nearly user-defined RF waveform generation.<br>

scholarly journals Photonic radio frequency arbitrary waveform generator based on an integrated 49GHz FSR Kerr micro-comb source

2020 ◽  
Author(s):  
David Moss
Keyword(s):  
Radio Frequency ◽  
High Performance ◽  
Free Spectral Range ◽  
Duty Ratio ◽  
Waveform Generator ◽  
Arbitrary Waveform Generator ◽  
Broad Bandwidth ◽  
Waveform Generation ◽  
Arbitrary Waveform ◽  
Good Agreement

We report a photonic-based radio frequency (RF) arbitrary waveform generator (AWG) using a soliton crystal micro-comb source with a free spectral range (FSR) of 48.9 GHz. We successfully achieve arbitrary shapes including square waveforms with a tunable duty ratio ranging from 10% to 90%, sawtooth waveforms with a tunable slope ratio of 0.2 to 1, and a symmetric concave quadratic chirp waveform with an instantaneous frequency of sub GHz. We achieve good agreement between theory and experiment, validating the effectiveness of this approach towards realizing high-performance, broad bandwidth, nearly user-defined RF waveform generation.<br>

scholarly journals ADC Production Test Technique Using Low-Resolution Arbitrary Waveform Generator

VLSI Design ◽  
2008 ◽  
Vol 2008 ◽  
pp. 1-8 ◽  
Author(s):  
V. Kerzérho ◽  
P. Cauvet ◽  
S. Bernard ◽  
F. Azaïs ◽  
M. Renovell ◽  
...  
Keyword(s):  
High Performance ◽  
Low Cost ◽  
Second Step ◽  
Production Test ◽  
Waveform Generator ◽  
Arbitrary Waveform Generator ◽  
Test Technique ◽  
Arbitrary Waveform ◽  
Standard Production ◽  
Harmonic Distortions

Standard production test techniques for ADC require an ATE with an arbitrary waveform generator (AWG) with a resolution at least 2 bits higher than the ADC under test resolution. This requirement is a real issue for the new high-performance ADCs. This paper proposes a test solution that relaxes this constraint. The technique allows the test of ADC harmonic distortions using only low-cost ATE. The method involves two steps. The first step, called the learning phase, consists in extracting the harmonic contributions from the AWG. These characteristics are then used during the second step, called the production test, to discriminate the harmonic distortions induced by the ADC under test from the ones created by the generator. Hardware experimentations are presented to validate the proposed approach.

Arbitrary waveform generator biologically inspired

2013 ◽  
Vol 51 ◽  
pp. 36-51 ◽  
Author(s):  
R. Vázquez-Medina ◽  
O. Jiménez-Ramírez ◽  
M. A. Quiroz-Juárez ◽  
J. L. Aragón
Keyword(s):  
Waveform Generator ◽  
Arbitrary Waveform Generator ◽  
Biologically Inspired ◽  
Arbitrary Waveform

scholarly journals RF and microwave fractional differentiation with transversal filters using a soliton crystal microcomb multiwavelength source

2020 ◽  
Author(s):  
David Moss ◽  
Arnan Mitchell ◽  
Roberto Morandotti ◽  
xingyuan xu
Keyword(s):  
High Performance ◽  
Free Spectral Range ◽  
Fractional Differentiation ◽  
Temporal Response ◽  
Pulse Input ◽  
Transversal Filters ◽  
Multi Wavelength ◽  
Fractional Orders ◽  
Fractional Differentiator ◽  
Good Agreement

We report a photonic radio frequency (RF) fractional differentiator based on an integrated Kerr micro-comb source. The micro-comb source has a free spectral range (FSR) of 49 GHz, generating a large number of comb lines that serve as a high-performance multi-wavelength source for the differentiator. By programming and shaping the comb lines according to calculated tap weights, arbitrary fractional orders ranging from 0.15 to 0.90 are achieved over a broad RF operation bandwidth of 15.49 GHz. We experimentally characterize the frequency-domain RF amplitude and phase response as well as the temporal response with a Gaussian pulse input. The experimental results show good agreement with theory, confirming the effectiveness of our approach towards high-performance fractional differentiators featuring broad processing bandwidth, high reconfigurability, and potentially reduced sized and cost.

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