Optical phase conjugation and double-exposure phase-conjugate interferometry in dye-doped thin film using He-Ne laser

摘要

We have experimentally demonstrated optical phase conjugation and double-exposure phase-conjugate interferometry in a methyl green dye-doped gelatin film via degenerate four-wave mixing using a low-power He-Ne laser for the first time. The origin of phase conjugation associated with this dye-doped film is discussed. A phase-conjugate reflectivity of 0.13% is obtained with a He-Ne laser of total power 35 mW.