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Fiberoptic based recirculating memory loop
Conference proceeding

Fiberoptic based recirculating memory loop

R Saedi, A Daryoush and P Herczfeld
1992 IEEE MTT-S Microwave Symposium Digest, v ol. 2, pp 677-680 vol.2
1992

Abstract

Equalizers Frequency response Noise figure Optical fiber couplers Optical fibers Optical pulses Optical resonators Optical switches Pulse amplifiers Radio frequency
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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