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Semiconductor Ring Laser

By A. Scirè
2009

SEMICONDUCTOR RING LASERS are optoelectronics devices with applications to in all-optical circuits. The peculiar geometry of SRLs allows the existence directionally bistable regime where the optical power is mainly concentrated in one propagation direction (clockwise or counterclockwise). This feature opens up a new scenario in the production of optical logic gates and memories [http://www.iolos.org].