Ultrabroadband beam splitting in a dissipative system of three waveguides
Rim Alrifai,
Virginie Coda,
Jonathan Peltier
et al.
Abstract:We show that a system of three parallel waveguides, among which the central one is dissipative, leads to an ultra-broadband power splitting associated to an overall 50% power loss. The present approach is reminiscent of non-hermitian systems in quantum mechanics and does not require a perfect effective index matching between the external and the central waveguides. The present concept does not need any slow adiabatic evolution of the waveguide parameters and may therefore be realized over very short device len… Show more
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