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Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE

Additional contrary-directed channel in circular fiber optic loop memory

Vladimir A. Pilipovich, Alexander K. Esman, Игорь Андреевич Гончаренко, Valery S. Posedko, Ivan F. Solonovich

Published Jan 21, 1994• 1 citation
Publisher

Abstract

The method of enhancing the information capacity and reliable storage of the information in circulator fiber-optic memory systems is presented. For this purpose the additional channel with contrary directed circulation of the signals is provided. The additional channel is simultaneously used for circulation of the clock signals and for compensation of the information signal losses in optical fiber due to stimulated Raman scattering.

DOI
10.1117/12.166002

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The method of enhancing the information capacity and reliable storage of the information in circulator fiber-optic memory systems is presented. For this purpose the additional channel with contrary directed circulation of the signals is provided. The additional channel is simultaneously used for circulation of the clock signals and for compensation of the information signal losses in optical fiber due to stimulated Raman scattering.
A method for increasing the information capacity and enhancing the reliability of information storage in a dynamic fibre-optic memory is proposed. An additional built-in channel with counterpropagating circulation of signals is provided for this purpose. This additional channel can be used to transmit both information and service signals, such as address words, clock signals, correcting sequences, etc. The possibility of compensating the attenuation of an information signal by stimulated Raman scattering is considered.
The method of enhancing the information capacity and reliable storage of information in circulator fiber-optic memory is presented. The method is based on creation of an additional built-in channel with contrary-directed circulation of signals. This channel can be used for transmission of both information and auxiliary signals: address words, clock signals, correcting sequences, etc. The possibility of compensating the information signal losses by means of stimulated Raman scattering is considered.
The feasibility of constructing an all-optical dynamic memory based on stimulated Raman scattering (SRS) in a fibre waveguide is discussed. A possible use of an SRS inverter for regeneration of optical signals is considered. Theoretical and experimental investigations are reported of the functional properties of an SRS inverter. The construction and investigation of a prototype all-optical fibre memory with an SRS inverter are described. The repetition frequency of the optical pulses along a fibre loop is 100 MHz and the loop capacity is 500 bits. Pulse circulation is reported over a period of 10 min at an average pump power of 2 W. The response time and the energy requirements of devices with an SRS inverter, and ways of improving their characteristics are considered.