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1974
The optical directional coupler, analogous to the microwave element1 of the same name, consists of parallel channel optical waveguides sufficiently closely spaced that energy is transferred from one to another. For this coupling to take place cumulatively over a substantial length, the light must propagate with the same phase velocity in each channel ...
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The optical directional coupler, analogous to the microwave element1 of the same name, consists of parallel channel optical waveguides sufficiently closely spaced that energy is transferred from one to another. For this coupling to take place cumulatively over a substantial length, the light must propagate with the same phase velocity in each channel ...
openaire +1 more source
Thermooptic coupler: a controllable multimode optical directional coupler
Applied Optics, 1983N J, Moll, D, Dolfi
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Directional Couplers as Microwave Logic
IEEE Transactions on Electronic Computers, 1963Thomas A. Kriz, T. Koryu Ishii
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Nonlinear plasmonic directional couplers
Applied Physics Letters, 2010José R Salgueiro, Yuri S Kivshar
exaly