Optical record reproducing method and apparatus utilizing stimulated photon echo.

摘要

A method of reproducing information recorded on a recording medium capable of the persistent or transient Hole Burning memory, the method comprising the steps of: irradiating a reproducing excitation light and a probe light; relatively modulating the phase of the reproducing excitation light and the probe light; overlapping a stimulated photon echo light emitted from the medium due to the application of the reproducing excitation light and the probe light; and converting a synthesized light of the stimulated photon echo light and the probe light, which have been overlapped, into an electric signal.