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 date||1/1/17 → 12/31/20|
- optical bistability
- Hopf bifurcation
- critical slowing-down
- self-phase locking