Printable planar lightwave circuits with a high refractive index

We report a novel nanofabrication method to fabricate printable integrated circuits with a high refractive index working in the visible wavelength range. The printable planar ligthwave circuits are directly imprinted by ultra-violet nanoimprinting into functional TiO 2 -based resist on the top of planar waveguide core films. The printed photonic circuits are composed of several elementary components including ridge waveguides, light splitters and digital planar holograms. Multi-mode ridge waveguides with propagation losses around 40 dB cm −1 at 660 nm wavelength, and, on-chip demultiplexers operated in the visible range with 100 channels and a spectral channel spacing around 0.35 nm are successfully demonstrated.

Carlos Pina-Hernandez, Alexander Koshelev, Lucas Digianantonio, Scott Dhuey, Aleksandr Polyakov, Giuseppe Calafiore, Alexander Goltsov, Vladimir Yankov, Sergey Babin, Stefano Cabrini and Christophe Peroz

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