光束通过原子蒸汽传播时引入的过量噪声

M. Kauranen, A. Gaeta, W. V. Davis, R. Boyd
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引用次数: 0

摘要

我们提出并展示了一种机制的实验证据,该机制对降低噪声的数量很重要,可以在低(<100 MHz)频率下实现,利用原子蒸汽作为非线性介质该机制是基于弱探测波的真空侧带与原子蒸汽中的强简并泵浦波相互作用时所经历的双光束耦合增益2。该机制导致了初始短噪声受限探头场的强度波动放大。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Excess Noise Introduced by Beam Propagation Through an Atomic Vapor
We propose and show experimental evidence of a mechanism that is important in reducing the amount of noise reduction that can be achieved at low (<100 MHz) frequencies utilizing atomic vapors as the nonlinear medium.1 The mechanism is based on the two-beam-coupling gain2 experienced by the vacuum sidebands of a weak probe wave as it interacts with a strong degenerate pump wave in an atomic vapor. The mechanism leads to the amplification of intensity fluctuations of an initially shot-noise-limited probe field.
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