Properties of cat mutually pumped phase conjugation and two-wave mixing gain in doped KNSBN  

作　　者：许心光 邵宗书 王正平 刘均海 许贵宝 胡大伟 

机构地区：[1]State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100

出　　处：《Chinese Optics Letters》2003年第8期482-484,共3页中国光学快报（英文版）

基　　金：This work was supported by a grant from the Key Re-search Project No.2 in the Climbing Program from the State Science and Technology Commission of China, and partially supported by the Young National Science Foun-ation of shandong University.

摘　　要：Cat mutually pumped phase conjugation configuration is discovered and investigated by using two-wave mixing in (KyNa1-y)2z(SrxBa1-x)1-zNb2O6 (KNSBN) crystal. When only one signal or pumped beam does not give birth to phase conjugation, the maximum reflectivity of signal and pumped beam attain 140% and 30% due to two-wave mixing, respectively. The experimental results show that the two-wave mixing can reduce the threshold of incident beams power, extend the incident angle range, and shorten response rate in the process of self-pumped phase conjugator (SPPC) in KNSBN crystal.Cat mutually pumped phase conjugation configuration is discovered and investigated by using two-wave mixing in (KyNa1-y)2z(SrxBa1-x)1-zNb2O6 (KNSBN) crystal. When only one signal or pumped beam does not give birth to phase conjugation, the maximum reflectivity of signal and pumped beam attain 140% and 30% due to two-wave mixing, respectively. The experimental results show that the two-wave mixing can reduce the threshold of incident beams power, extend the incident angle range, and shorten response rate in the process of self-pumped phase conjugator (SPPC) in KNSBN crystal.

关 键 词：Optical beam splitters Optical systems PHOTODETECTORS Photorefractive materials 

分 类 号：O437[机械工程—光学工程]