Reconfigurable nonlinear frequency conversion waveguide chip based on Mach-Zehnder interferometer coupled microring

A reconfigurable nonlinear frequency conversion waveguide chip based on Mach-Zehnder interferometers (MZI) coupled micro-ring resonators, characterized in that

• the waveguide chip is comprised of
• phase-adjustable Mach-Zehnder interferometers (MZI) and micro-ring resonator,
• wherein the phase-adjustable MZI couples light and photons into and out of the micro-ring resonators and controls the micro-rings' quality factor to optimize the nonlinear frequency conversion processes inside the micro-rings by a phase-modulator inside the phase-adjustable MZI;
• and
• the micro-ring resonators enable the nonlinear optical generation of new frequency light beams and quantum light sources based on a second-order or third-order nonlinear optical processes;
• and
• linear optical circuits, for power splitting of pump beams and post-process of generated light beams or photons by a nonlinear process including the classic nonlinear parameter process and spontaneous parameter process for generating quantum light source.