Title :
Design of an ultra high-speed all-optical analog-to-digital converter
Author :
Hou, Xiaobo ; Daryoush, Afshin ; Rosen, Warren ; Burstyn, Herschel ; Zalud, Peter
Author_Institution :
ECE Dept., Drexel Univ., Philadelphia, PA, USA
Abstract :
An all-optical analog-to-digital converter capable of sampling at 50 GS/s is described. The ADC works in the spectral domain, unlike the other all-optical or hybrid methods. The RF signal is sampled by electro-optically steerable gratings and quantized by a set of detectors with scalable apertures. Low timing jitter is provided by a mode-locked laser.
Keywords :
diffraction gratings; electro-optical devices; quantisation (signal); radar receivers; radio receivers; signal sampling; RF signal sampling; advanced radar system; all-optical analog-to-digital converter; digital receivers; direct digital conversion; electro-optically steerable gratings; mode-locked laser; next generation wireless telecommunication; spectral domain; timing jitter; ultra high-speed analog-to-digital converter; Analog-digital conversion; Gratings; High speed optical techniques; Optical receivers; Optical recording; Optical refraction; Optical variables control; Sampling methods; Signal resolution; Timing jitter;
Conference_Titel :
Radar Conference, 2004. Proceedings of the IEEE
Print_ISBN :
0-7803-8234-X
DOI :
10.1109/NRC.2004.1316479
