Observation of nonlinear interference on a silicon photonic chip.
Observation of nonlinear interference on a silicon photonic chip.
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DOI：
10.1364/ol.44.001277
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发表时间：
2019-03
期刊：
影响因子：
3.6
通讯作者：
T. Ono;G. Sinclair;D. Bonneau;M. Thompson;J. Matthews;J. Rarity
中科院分区：
文献类型：
--
作者：
T. Ono;G. Sinclair;D. Bonneau;M. Thompson;J. Matthews;J. Rarity
光子集成电路为量子信息科学在量子计算、量子通信、量子计量等领域的应用提供了一个前景广阔的平台。虽然线性光学方法在这一领域做出了巨大贡献，但通常可以通过利用非线性过程来提高功能和可扩展性。一个有趣的现象是两个非线性光学过程之间的干涉，其中干涉是通过去除关于两个过程中哪一个发生的信息而发生的。在这篇论文中，我们展示了在集成硅光子芯片中使用自发四波混频产生对光子的非线性干涉仪。我们观察到两种不同的四波混频波导产生光子对的速率存在非线性干涉。我们获得了96.8%的干扰可见度。这项工作显示了集成和控制硅量子光子学非线性光干涉元件的可能性。
Photonic integrated circuits represent a promising platform for applying quantum information science to areas such as quantum computation, quantum communication, and quantum metrology. While the linear optical approach has greatly contributed to this field, it is often possible to improve the functionality and scalability by making use of nonlinear processes. One interesting phenomenon is the interference between two nonlinear optical processes, where the interference occurs by removing the information as to which of two processes have occurred. In this Letter, we demonstrate a nonlinear interferometer in the pair-photon generation regime by using spontaneous four-wave mixing in an integrated silicon photonic chip. We observe a nonlinear interference in the production rate of photon pairs generated from two different four-wave mixing waveguides. We obtain an interference visibility of 96.8%. This work shows the possibility of integrating and controlling nonlinear-optical-interference components for silicon quantum photonics.