Mason Elliott J, Albota Marius A, König Friedrich, Wong Franco N C
Opt Lett. 2002 Dec 2;27(23):2115-7. doi: 10.1364/ol.27.002115.
We demonstrate efficient generation of collinearly propagating, highly nondegenerate photon pairs in a periodically poled lithium niobate cw parametric downconverter with an inferred pair generation rate of 1.4x10(7)/s/mW of pump power. Detection of an 800-nm signal photon triggers a thermoelectrically cooled 20%-efficient InGaAs avalanche photodiode for the detection of the 1600-nm conjugate idler photon. Using single-mode fibers as spatial mode filters, we obtain a signal-conditioned idler-detection probability of ~3.1%.
我们展示了在周期性极化铌酸锂连续波光参量下变频器中高效产生共线传播、高度非简并的光子对，推断的对产生率为每毫瓦泵浦功率1.4×10⁷/秒。检测800纳米的信号光子会触发一个热电冷却的20%效率的铟镓砷雪崩光电二极管，用于检测1600纳米的共轭闲频光子。使用单模光纤作为空间模式滤波器，我们获得了约3.1%的信号调节闲频检测概率。
