Classical and quantum information technologies based on self phase-locked optical parametric oscillators

Project: Monitored by Research Administration

Project Details

Grant Program

ORAU Grant

Project Description

This ORAU projects aims at investigating the potential for new quantum information and classical information technologies based on a novel class of optical parametric oscillators (OPOs) that are free from phase-diffusion noise stemming from the random-walk noise due to spontaneous parametric fluorescence as in conventional non degenerate OPOs. The special class of OPOs under scrutiny are frequency divide-by-3, self-phase-locked optical parametric oscillations (SPL-OPOs, where a pump photon with frequency 3ω interacting in a nonlinear crystal gives birth to the oscillation in an optical resonator of two twin subharmonic photons at frequencies 2ω - called signal - and ω - idler). The three (sub)harmonic modes are self-phase-locked via a second cascading quadratic nonlinear process (2ω ⇄ ω) self-injecting the signal and idler modes. Under self-phase-locking, the pump, signal and idler frequencies are locked to an exact 3:2:1 ratio and because the usual phase-diffusion noise affecting the signal and idler waves is frozen, a rich variety of quantum and classical dynamics features never observed to date can be evidenced, with potential applications in classical and quantum information processing (phase squeezed and entangled bright light).
Effective start/end date1/1/1712/31/21


  • optical bistability
  • Hopf bifurcation
  • critical slowing-down
  • self-phase locking


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