SQUEEZING SPECTRA FOR NONLINEAR-OPTICAL SYSTEMS - DISPERSIVE BISTABILITY

Nonlinear dissipative processes are of central interest in quantum opt ics. The solution of those problems, however, causes serious mathemati cal problems, and linearization is the most frequently used approximat ion. On the basis of the model of dispersive optical bistability, we i nvestigate the validity of linearization by comparing those results wi th the numerical solution of the nonlinear dynamics. At points of inst ability, where the non-classical behaviour is most prominent, lineariz ation fails by underestimating the quantum fluctuations.