title: Demonstrations of analog-to-digital conversion using a frequency domain stretched processor.
abstract: The first proof-of-concept demonstrations are presented for a broadband photonic-assisted analog-to-digital converter (ADC) based on spatial spectral holography (SSH). The SSH-ADC acts as a frequency-domain stretch processor converting high bandwidth input signals to low bandwidth output signals, allowing the system to take advantage of high performance, low bandwidth electronic ADCs. Demonstrations with 50 MHz effective bandwidth are shown to highlight basic performance with approximately 5 effective bits of vertical resolution. Signal capture with 1600 MHz effective bandwidth is also shown. Because some SSH materials span over 100 GHz and have large time apertures (approximately 10 micros), this technique holds promise as a candidate for the next generation of ADCs.
authors: The Spectrum Lab, Montana State University, Bozeman, MT 59717, USA. rreibel@spectrum.montana.ed
authors: Randy Ray
authors: RR
authors: Reibel
authors: Calvin
authors: C
authors: Harrington
authors: Jason
authors: J
authors: Dahl
authors: Charles
authors: C
authors: Ostrander
authors: Peter Aaron
authors: PA
authors: Roos
authors: Trenton
authors: T
authors: Berg
authors: R Krishna
authors: RK
authors: Mohan
authors: Mark A
authors: MA
authors: Neifeld
authors: Wm R
authors: WR
authors: Babbitt