216 citations · 818 across the 20 of their papers we have counts for
5 papers · 1 filter
Structured light under turbulence
Guilherme S. Barros, Lucas C. Céleri, Antonio Zelaquett Khoury +3
Structured light has emerged as a promising resource for high-capacity and secure free-space optical communication, where atmospheric turbulence remains a major source of signal de…
Gouy-phase effects in the frequency combs of an optical parametric oscillator
R. F. Barros, G. B. Alves, A. Z. Khoury
We investigate the transverse mode effects on the frequency combs generated by a type-I optical parametric oscillator (OPO) below threshold. We take the diffraction effects fully i…
Conditions for optical parametric oscillation with structured light pump
G. B. Alves, R. F. Barros, D. S. Tasca +2
We investigate the transverse mode structure of the down-converted beams generated by a type-II optical parametric oscillator (OPO) driven by a structured pump. Our analysis focus…
Phase conjugation and mode conversion in stimulated parametric down-conversion with orbital angular momentum: a geometrical interpretation
André G. de Oliveira, Marcelo F. Z. Arruda, Willamys C. Soares +5
We report on an experiment that investigates the spatial mode conversion in the process of parametric down-conversion seeded by a light beam in a superposition of orbital angular m…
Orbital angular momentum exchange in an optical parametric oscillator
M. Martinelli, J. A. O. Huguenin, P. Nussenzveig +1
We present a study of orbital angular momentum transfer from pump to down-converted beams in a type-II Optical Parametric Oscillator. Cavity and anisotropy effects are investigated…