GENERATION OF AMPLITUDE SQUEEZED STATES OF LIGHT FROM PHASE SQUEEZED COHERENT STATES

We propose a scheme to generate a displaced macroscopic superposition of phase squeezed coherent states by incorporating an optical parametr ic oscillator (OPO) and a nonlinear Kerr medium in a Mach-Zhender inte rferometer configuration. We show that the phase squeezed coherent sta te generated by the OPO evolves into a macroscopic superposition of ph ase squeezed coherent states on spending a specific amount of time ins ide a Kerr medium. The phase space displacement is achieved by the int erference of the intense reference beam with the signal in the final b eam splitter of the interferometer. The noise of the reference beam co ntaminating the signal is prevented by making this beam splitter highl y reflective. We have calculated the photon number uncertainty of the outcoming beam and have shown that it is smaller than the usual amplit ude squeezed coherent state's value.