Patent ID: 9075282
Filing Date: 2015-07-07
Classification: B82Y,G02F,G06N,H04B,H04L,Y10S

Abstract:
1. An apparatus for sequentially entangling photons, comprising: a waveguide chip having integrated optical components and interconnecting optical waveguides disposed therein, wherein said optical components further comprise an input port connected to said optical waveguides for inputting said photons into said waveguide chip; a polarization controller connected to said input port for rotating the polarization of said input port; a plurality of delay lines for synchronizing said photons in time; a plurality of multimode interferometers for selectably routing said photons through any of said interconnecting optical waveguides; a controller for switching an input mode of any of said plurality of multimode interferometers so as to route said photons out of a selected interferometer output port; a clock source for synchronizing said controller with the arrival of said photons; an entangling gate having bypass and entangling inputs and bypass and entangling outputs for selectively entangling said photons; and an output port for routing said entangled photons out of said waveguide chip.