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Topical Meeting on Optical Bistability (OB)

Period Doubling and Intermittency in the Transmission of a Na Vapor Filled Fabry-Perot

S. Cecchi, Giovanni Giusfredi, P. Salieri, F. T. Arecchi

Published Jan 1, 1985• 0 citations
Publisher

Abstract

The transmission of a coherent beam interacting with sodium atoms in a Fabry-Perot resonator displays a complex stationary and dynamical behaviour. It follows from the presence of many degrees of freedom, arising from the atomic structure and from the "velocity group" subdivision of the atoms in the inhomogeneously broadened interaction with the field.

DOI
10.1364/obi.1985.we5

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The transmission of a coherent beam interacting with sodium atoms in a Fabry-Perot resonator displays a complex stationary and dynamical behaviour. It follows from the presence of many degrees of freedom, arising from the atomic structure and from the "velocity group" subdivision of the atoms in the inhomogeneously broadened interaction with the field.
In previous experiments on the trasmission properties of a Fabry-Perot interferometer filled with Na vapor |1,2| a buffer gas was added to collisionally broaden the resonance, with velocity changing collisions inducing broad ground state pumping over the whole line. Here we consider the very different inhomogeneous regime (no buffer gas), where optical pumping takes place on single homogeneous velocity groups. We carefully control direction and strength of the magnetic field and examine the cavity transmission properties, both in intensity and polarization, in the temperature range 130 - 180 °C (0.5 - 9.2·1011 atoms/cm3), as the laser is tuned across the DI line.