论文标题
观察通过光纤中的Kerr非线性挤压稳健极化
Observation of robust polarization squeezing via the Kerr nonlinearity in an optical fibre
论文作者
论文摘要
挤压光是光子量子技术的资源之一。在能够产生挤压的各种非线性相互作用中，光学KERR效应特别易于使用。一个流行的场所是产生极化挤压，这是两种模式挤压的一种特殊的自我引用变体。迄今为止，极化挤压生成设置对外部因素的波动非常敏感，并且需要仔细调整。在这项工作中，我们报告了一种新的全纤维设置，用于极化挤压产生。该设置仅由被动元素组成，并且简单，坚固且稳定。我们在长期内获得了超过5 dB的直接测量挤压，而无需进行任何调整。因此，新方案提供了一种易于且易于设置的方法，可以获取适用于不同应用的挤压光。我们研究了脉冲持续时间和脉冲功率对挤压程度的影响。
Squeezed light is one of the resources of photonic quantum technology. Among the various nonlinear interactions capable of generating squeezing, the optical Kerr effect is particularly easy-to-use. A popular venue is to generate polarization squeezing, which is a special self-referencing variant of two-mode squeezing. To date, polarization squeezing generation setups have been very sensitive to fluctuations of external factors and have required careful tuning. In this work, we report on a development of a new all-fibre setup for polarization squeezing generation. The setup consists of passive elements only and is simple, robust, and stable. We obtained more than 5 dB of directly measured squeezing over long periods of time without any need for adjustments. Thus, the new scheme provides a robust and easy to set up way of obtaining squeezed light applicable to different applications. We investigate the impact of pulse duration and pulse power on the degree of squeezing.
