We propose fast and robust mode conversion in multimode waveguides based on Lewis–Riesenfeld invariant theory. The design of mode converters using the multimode driving for dynamical invariant is discussed. Computer-generated planar holograms are used to mimic the shaped pulses driving the states in three-level quantum systems. We show that the invariant-based inverse engineering scheme reduces mode converter length as compared to the common adiabatic scheme.
© 2012 Optical Society of AmericaPDF Article
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