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Quantum Electronics

Long-term all-optical ring fibre memory based on stimulated Raman scattering

Mikhail P. Petrov, Vladimir I. Belotitskii, Evgeny A. Kuzin, Vasilii V. Spirin

Published Dec 31, 1995• 0 citations
Publisher

Abstract

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.

DOI
10.1070/qe1995v025n12abeh000567

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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.
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This paper presents a new model for an absorptive-dispersive optical bit memory using stimulated Raman scattering slow-light (SRS). The structure of our model is developed in a low loss silicon-on-insulator (SOI) waveguide based on Stimulated Raman Scattering (SRS). Waveguide has two parts, Raman cell and feedback pass. This model functions as a memory bit and can store an optical pulse by generating a pulse train in the output. Also by using a p-i-n diode structure in Raman cell, the delay time between OB output pulses can be tuned through changing the bias voltage.
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.