TY - JOUR
T1 - Broadband analog to digital conversion with spatial-spectral holography
AU - Babbitt, W. Randall
AU - Neifeld, Mark A.
AU - Merkel, Kristian D.
N1 - Funding Information:
We acknowledge the support of the DARPA Analog Optical Signal Processing program (Grants NRO000-02-C-0629 and MDA972-03-1-0002) and Montana Board of Research and Commercialization Technology (Grant #06-29). We thank Kelvin Wagner of the University of Colorado, Rufus Cone and Randy Reibel of Montana State University, and Yongchen Sun of the University of South Dakota for helpful discussions.
PY - 2007/11
Y1 - 2007/11
N2 - A new approach to broadband photonic-assisted analog-to-digital converter (ADC) technology is proposed and analyzed. The core of the device is a spatial spectral holographic (SSH) material, which can directly record the signals of interest in the frequency domain. An SSH-ADC acts as a frequency-domain stretch processor, which leverages the high performance of conventional ADCs by converting high bandwidth input signals to low bandwidth output signals without loss of information. Analysis of a 10 GHz bandwidth SSH-ADC predicts that 10-bit performance can be achieved with currently available materials and components. SSH-ADC technology is scalable to bandwidths over 100 GHz with recently developed SSH materials. While the SSH-ADC is a transient digitizer, the spatial parallelism of SSH materials can be utilized to enable continuous digitization.
AB - A new approach to broadband photonic-assisted analog-to-digital converter (ADC) technology is proposed and analyzed. The core of the device is a spatial spectral holographic (SSH) material, which can directly record the signals of interest in the frequency domain. An SSH-ADC acts as a frequency-domain stretch processor, which leverages the high performance of conventional ADCs by converting high bandwidth input signals to low bandwidth output signals without loss of information. Analysis of a 10 GHz bandwidth SSH-ADC predicts that 10-bit performance can be achieved with currently available materials and components. SSH-ADC technology is scalable to bandwidths over 100 GHz with recently developed SSH materials. While the SSH-ADC is a transient digitizer, the spatial parallelism of SSH materials can be utilized to enable continuous digitization.
KW - Analog-to-digital conversion
KW - Direct digital conversion
KW - Microwave signal processing
KW - Optical signal processing
KW - Spectral-spatial holography
KW - Stretch processing
UR - http://www.scopus.com/inward/record.url?scp=34248574075&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34248574075&partnerID=8YFLogxK
U2 - 10.1016/j.jlumin.2007.02.018
DO - 10.1016/j.jlumin.2007.02.018
M3 - Article
AN - SCOPUS:34248574075
VL - 127
SP - 152
EP - 157
JO - Journal of Luminescence
JF - Journal of Luminescence
SN - 0022-2313
IS - 1
ER -