Treball realitzat en col·laboració amb l'IMB-CNM (CSIC)Treball final de màster oficial fet en col·laboració amb Universitat Autònoma de Barcelona (UAB), Universitat de Barcelona (UB) i Institut de Ciències Fotòniques (ICFO)Coherent control and manipulation of light propagation in systems of
three coupled rib optical waveguides is addressed. We show that by an appropriate
variation of the distance among waveguides, it is possible to transfer a beam of
light between the outermost waveguides with very low excitement of the central one,
resembling the Stimulated Raman Adiabatic Passage (STIRAP) technique. Results
for total internal re
ection (TIR) waveguides and for anti-resonant re
ecting optical
waveguides (ARROW) are presented. In the case of TIR waveguides, we demonstrate
that the system can be designed to be used as a spectral lter and as a refractometer.
The possibility to use the system as a delay line by chaining a sequence of two STIRAP
processes has been explored
