Virtual Journal of Laser

Publication year: 2010
Source: Optics & Laser Technology, In Press, Corrected Proof, Available online 21 February 2010
Sisir, Kumar Garai , Sourangshu, Mukhopadhyay
The very fast running optical memory and optical logic gates are the basic building blocks for any optical computing data processing system. Realization of a very fast memory-cell in the optical domain is very challenging. In the last two decades many methods of implementing all-optical flip-flops have been proposed. Most of these suffer from speed limitation because of low switching response of the active devices. In our present communication the authors propose a method of developing a frequency encoded memory unit based on the switching action of semiconductor optical amplifier (SOA). Nonlinear polarization rotation characters of SOA and ‘SOA based...