Demonstration of the formation of fourhyphen;wave mixing interaction regions in a highhyphen;efficiency mutually pumped phase conjugator

摘要

We show a mutually pumped phase conjugator with a high coupling efficiency in a novel crystal of copperhyphen;doped potassium sodium strontium barium niobate. A twisting around of one another and selfhyphen;curving coupling channel is observed. A theory is developed to simulate the coupling channel. The shape of curved trajectories has also been calculated. We verify that one, two, three, and more four wave mixing interaction regions exist in photorefractive bridge mutually pumped phase conjugators with the simulations. The calculated results are essentially consistent with our experimental observations, and they may be used in other photorefractive phase conjugators after making a modification. copy;1996 American Institute of Physics.