Optical parametric oscillation in a random polycrystalline medium

Optical parametric oscillation in a random poly-crystalline medium: ZnSe ceramic

We demonstrate an optical parametric oscillator (OPO) based on random phase matching in a polycrystalline χ material, ZnSe. The subharmonic OPO utilized a 1.5-mm-long polished ZnSe ceramic sample placed at the Brewster's angle and was synchronously pumped by a Kerr-lens mode-locked Cr:ZnS laser with a central wavelength of 2.35 μm, a pulse duration of 62 fs, and a repetition frequency of 79 MHz...

Parametric oscillation in a vertical microcavity: A polariton condensate or micro-optical parametric oscillation

J. J. Baumberg, P. G. Savvidis, R. M. Stevenson, A. I. Tartakovskii, M. S. Skolnick, D. M. Whittaker, and J. S. Roberts Department of Physics & Astronomy, University of Southampton, SO17 1BJ, United Kingdom Department of Physics, University of Sheffield, Sheffield S3 7RH, United Kingdom Toshiba Research Europe Ltd, Cambridge, CB4 4WE, United Kingdom Department of Electronic and Electrical Engin...

Stable nondegenerate optical parametric oscillation at degenerate frequencies in Na:KTP

We report the realization of a light source specifically designed for the generation of bright continuousvariable entangled beams and for Heisenberg-limited inteferometry. The source is a nondegenerate, singlemode, continuous-wave optical parametric oscillator in Na:KTP, operated at frequency degeneracy and just above threshold, which is also of interest for the study of critical fluctuations a...

Observation of optical bistability in a ZnO powder random medium

Random polarization dynamics in a resonant optical medium.

Random optical-pulse polarization switching along an active optical medium in the Λ configuration with spatially disordered occupation numbers of its lower energy sublevel pair is described using the idealized integrable Maxwell-Bloch model. Analytical results describing the light polarization-switching statistics for the single self-induced transparency pulse are compared with statistics obtai...