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Using simple fiber networks for proof-of-principle demonstrations, we give examples of natural computing in linear optical networks, like solving polynomial (P) and nondeterministic polynomial (NP) problems, and in nonlinear optical networks, like metaheuristic optimization and neuromorphic computing.
Using nonlinear Erbium doped optical fiber network we have implemented an optimization algorithm for the famous problem of finding the shortest path on the map for the ant colony to travel to the foraging area.
We present hybrid propagation in a photonic liquid crystal fiber (PLCF) fabricated by selective infiltration of photonic crystal fiber (PCF) air channels with a nematic liquid crystal (LC). Temperature tuning of the position of the photonic bandgaps is also demonstrated.
A novel all-fiber refractometer based on a tilted fiber Bragg grating (TFBG) incorporating with a waist-enlarged fusion bitaper (WEFBT) is proposed and experimentally demonstrated. The WEFBT is upstream spliced with the TFBG thus coupling some of the cladding modes launched by the TFBG into core mode while the cladding modes excited by the WEFBT will be combined backward into the core by the TFBG...
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