ALL-OPTICAL NAND/NOT/AND/OR LOGIC GATES BASED ON COMBINED BRILLOUIN GAIN AND LOSS IN AN OPTICAL FIBER

摘要

A combined Brillouin gain and loss process has been created in a polarizationmaintainingoptical fiber to realize all-Optical NAND/NOT/AND/OR logic gates in thefrequency domain. Amodel describing the interaction of a Stokes, anti-Stokes and continuous wave,and two acousticwaves inside a fiber, ranging in length from 350m-2300m, was used totheoretically model thegates. Through the optimization of the gain and loss process, switchingcontrasts of 20-88% havebeen achieved, under different configurations. Experimental setups forNAND/NOT/AND/ORoptical logic gates have been described. A method and system for designing theall-optical logicgates have been also provided.