论文标题
超快速强度差差挤压脉冲对产生的超快速强度差的时间域测量值
Time-domain measurement of ultra-fast intensity difference squeezed pulse pairs generated in fiber
论文作者
论文摘要
脉冲泵送的四波混合过程通过$χ^{（3）} $非线性在光纤中可以生成具有连续可变量子相关性的光脉冲。但是，尚未研究该系统中生成的脉冲的成对相关性。在这里，我们报告了对纤维中产生的强度差压缩状态的时间域测量。使用快速响应差分检测系统，我们显示了生成的双束脉冲是成对的，并且-3.8 dB（检测损失后-8.1 dB）的强度差挤压度在时间范围内测量。我们的结果是通过光纤系统中的时间划分多路复用生成多模式纠缠状态的好处。
Pulsed pumped four-wave mixing process via $χ^{(3)}$ non-linearity in optical fiber can generate optical pulses with continuous variable quantum correlation. However, pair-wise correlation of the generated pulses in this system has not been studied. Here we report a time-domain measurement of an intensity difference squeezed state generated in fiber. With a fast response differential detection system, we show the generated twin-beam pulses are pair-wisely correlated, and -3.8 dB (-8.1 dB after detection losses correction) intensity difference squeezing degree is measured in time-domain. Our result is benefit for generating multi-mode entangled state by time-division multiplexing in fiber system.
