1.08μm波长低阈值高效率强度差压缩光产生的实验研究  

Experimental Research for Intensity Difference Squeezed Light Generation at 1.08 μm Wavelength with Low Pump Threshold and High Conversion Efficiency

作　　者：潘庆[1] 张云[1] 张天才[1] 谢常德[1] 彭墀[1] 

机构地区：[1]山西大学光电研究所

出　　处：《中国激光》1997年第7期631-634,共4页Chinese Journal of Lasers

基　　金：国家自然科学基金;山西省自然科学基金;山西省归国留学人员基金

摘　　要：用倍频稳频ＮｄＹＡＰ激光器作泵浦源，经ＫＴＰ晶体构成的半整块ＯＰＯ腔，在９０°非临界相位匹配情况下获得高量子相关孪生光束，实测强度差噪声压缩度在１．５ＭＨｚ附近达８０％（７ｄＢ），阈值泵浦功率为８０ｍＷ。The twin beams with high quantum correlation at 1 08 μm wavelength have been generated from the semimonolithic KTP OPO pumped by a frequency doubled and frequency stabilized Nd∶YAP laser The parametric frequency down conversion with the type ⅠⅠ 90° noncritical phase matching has been achieved in the α cut KTP for the 0 54 μm pump power. The quantum noise reduction of 80% (7 dB) around 1 5 MHz on the intensity difference between the twin beams has been observed The pump threshold for the OPO is about 80 mW.

关 键 词：孪生光束 强度差噪声 OPO腔 钕:YAP激光器 

分 类 号：TN248.1[电子电信—物理电子学]