Conference Proceeding

Fiberoptic based recirculating memory loop

Drexel Univ., Philadelphia, PA
IEEE MTT-S International Microwave Symposium digest. IEEE MTT-S International Microwave Symposium 07/1992; DOI:10.1109/MWSYM.1992.188074 ISBN: 0-7803-0611-2 pp.677 - 680 vol.2 In proceeding of: Microwave Symposium Digest, 1992., IEEE MTT-S International
Source: IEEE Xplore

ABSTRACT The authors discuss the design of a low-loss, low-noise figure,
fiber optic delay element at 1300 nm, capable of recirculating a short
electrical pulse as long as a millisecond over the 2-4 GHz frequency
band by using an adaptive gain equalizing technique. While the RF pulses
are recirculating in the system the noise level starts to build up. By
looking at the spectrum of the output signal the effect of the
recirculation on the spectral purity of the microwave signals can be
studied. The spectral purity characteristics of recirculated signals
were quantified for various recirculation times

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Keywords

fiber optic delay element
 
low-loss
 
low-noise figure
 
microwave signals
 
output signal
 
recirculated signals
 
RF pulses
 
spectral purity
 
spectral purity characteristics
 
various recirculation times
 

R. Saedi