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We demonstrate the generation and demultiplexing of quantum correlated photons on a chip. Photon pairs generated in a nonlinear silicon waveguide are successfully separated into two optical channels of an arrayed-waveguide grating made on a low-nonlinear silica platform.
Using low-temperature plasma-enhanced chemical vapor deposition, a silica-based arrayed-waveguide grating (AWG) filter has been monolithically integrated with germanium photodiodes on a silicon-based photonic platform. All the outputs of a 16-channel AWG with 200GHz spacing have been equipped with germanium photodiodes. All wavelength channels of the integrated device were confirmed to function as...
This paper presents our recent progress with the integration of silicon (Si) photonic devices for optical telecommunications. To integrate Si wire waveguides, germanium (Ge) photodetectors (PDs) and silica waveguides, we have developed processes for the selective epitaxial growth of Ge on a Si waveguide core and for the low-temperature deposition of silica waveguide film and introduced spot size converters...
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