中国激光, 1997, 24 (7): 631, 网络出版: 2006-10-31
1.08 μm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
摘要
用倍频稳频Nd:YAP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1.5 MHz附近达80%(7 dB),阈值泵浦功率为80 mW。
Abstract
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 ⅠⅠ 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.
潘庆, 张云, 张天才, 谢常德, 彭堃墀. 1.08 μm波长低阈值高效率强度差压缩光产生的实验研究[J]. 中国激光, 1997, 24(7): 631. 潘庆, 张云, 张天才, 谢常德, 彭堃墀. Experimental Research for Intensity Difference Squeezed Light Generation at 1.08 μm Wavelength with Low Pump Threshold and High Conversion Efficiency[J]. Chinese Journal of Lasers, 1997, 24(7): 631.
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