利用周期性极化KTiOPO_4晶体参量缩小过程产生明亮振幅压缩光  

Bright amplitude-squeezed light generation by an optical parametric deamplifier in a periodically poled KTiOPO_4 crystal

作　　者：马红亮[1] 卫栋[1] 叶晨光[1] 张靖[1] 彭堃墀[1] 

机构地区：[1]山西大学光电研究所量子光学与光量子器件国家重点实验室,太原030006

出　　处：《物理学报》2005年第8期3637-3640,共4页Acta Physica Sinica

基　　金：国家重点基础研究发展规划(批准号:2001CB309304);国家自然科学基金(批准号:60178012);教育部新世纪优秀人才支持计划;山西省青年科学基金(批准号:20021014;20031005)资助的课题.~~

摘　　要：利用周期性极化KTiOPO4晶体构成的连续准相位匹配简并光学参量缩小谐振腔,获得了注入红外的明亮正交振幅压缩光.参量振荡阈值为35mW.当抽运光功率为20mW时,测得压缩度为2·23dB,特别是当抽运光功率为8mW时,测得压缩度为2·17dB.We demonstrated experimentally the generation of bright amplitude-squeezed light by a continuous-wave quasi-phase-matched degenerate optical parametric deamplifier based on periodically poled KTiOPO4. The threshold of the optical parametric oscillator is 35 mW. With the pump power of 20 mW, the amplitude noise reduction of 2.23 dB is observed directly. It is significant that the amplitude noise reduction of 2.17 dB can be observed only at the pump power of 8 mW.

关 键 词：KTiOPO4晶体 周期性极化 压缩光 振幅 准相位匹配 光学参量 振荡阈值 光功率 压缩度 谐振腔 抽运 简并 正交 

分 类 号：O734[理学—晶体学]