Fig. 1 | Nature Communications

Fig. 1

From: Dissipatively coupled waveguide networks for coherent diffusive photonics

Fig. 1

One-dimensional diffusive photonic circuit. a Dissipatively coupled chain of the single mode waveguides. Every second waveguide (empty circles) is lossy and serves as a reservoir. The waveguides indicated by filled circles exhibit low loss and couple dissipatively via the auxiliary waveguides only. b Experimental realisation of the chain in a using an integrated optical circuit. The lossy sites are implemented using auxiliary arrangements of coupled waveguides. Here, κ 1 is the coupling between chain modes and lossy sites and κ 2 is the coupling between the waveguides forming the reservoirs. c The three-dimensional geometry of the elementary diffusive circuit indicated by the dotted rectangle in b

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