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arXiv 2603.26243physics.opticsphysics.ins-detquant-ph
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波导基于 squeezed 光源的噪声建模

Noise modelling of waveguide based squeezed light sources

KTH Royal Institute of Technology(皇家理工学院)

Erik Anders Torsten Svanberg, Daniel Voigt, Vaishali Adya

AI总结:

本文研究了波导基于 squeezed 光源的噪声特性,分析了相位噪声、多重损耗机制及基本光泄漏对 squeezed 光源的影响,提出 cascaded squeezer 架构以降低出射和检测损耗,为未来引力波探测器的量子噪声减少提供新方案。

摘要:

squeezed 光态被用于精密计量和量子增强测量,应用范围涵盖通信和传感。目前最先进的 squeezed-light 源通常依赖光学谐振腔来实现高、可用的 squeezing。最近,基于波导的 squeezed-light 源已显示出在可实现的 squeezing 方面有显著改进,其性能目前受到制造引起的损耗限制。在本工作中,我们对基于波导的 squeezers 进行了详细分析,考察了相位噪声、多重损耗机制以及 fundamental 光泄漏 seeding 的影响。我们进一步研究了一种 cascaded squeezer 架构,其中第二个波导作为相敏放大器运行以缓解出射和检测损耗。由于其易于集成、对高泵浦功率的鲁棒性和低固有相位噪声,我们提出基于波导的 squeezed-light 源作为未来引力波探测器,如爱因斯坦望远镜中量子噪声减少的有前景的替代方案。

英文摘要:

Squeezed states of light are used for precision metrology and quantum-enhanced measurements, with applications spanning communication and sensing. State-of-the-art squeezed-light sources typically rely on optical cavities to achieve high, usable levels of squeezing. Recently, waveguide-based squeezed-light sources have demonstrated significant improvements in achievable squeezing, with performance currently limited by fabrication-induced losses. In this work, we present a detailed analysis of waveguide-based squeezers, examining the effects of phase noise, multiple loss mechanisms, and fundamental light leakage seeding the squeezer. We further investigate a cascaded squeezer architecture, in which a second waveguide operates as a phase-sensitive amplifier to mitigate out-coupling and detection losses. Owing to their ease of integration, robustness to high pump powers, and low intrinsic phase noise, we propose waveguide-based squeezed-light sources as a promising alternative for quantum noise reduction in future gravitational wave detectors, such as the Einstein Telescope.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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