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Integrated Source of Path-Entangled Photon Pairs with Efficient Pump Self-Rejection

机译:具有高效泵自我抑制的路径缠绕光子对的集成源

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摘要

We present a theoretical proposal for an integrated four-wave mixing source of narrow-band path-entangled photon pairs with efficient spatial pump self-rejection. The scheme is based on correlated loss in a system of waveguides in Kerr nonlinear media. We calculate that this setup gives the possibility for upwards of 100 dB pump rejection, without additional filtering. The effect is reached by driving the symmetric collective mode that is strongly attenuated by an engineered dissipation, while photon pairs are born in the antisymmetric mode. A similar set-up can additionally be realized for the generation of two-photon NOON states, also with pump self-rejection. We discuss the implementation of the scheme by means of the coherent diffusive photonics, and demostrate its feasibility in both glass (such as fused silica-glass and IG2) and planar semiconductor waveguide structures in indium phosphide (InP) and in silicon.
机译:我们为具有有效空间泵自排斥的窄带路径缠绕光子对的集成四波混合源提供了一种理论上的提议。该方案基于Kerr非线性介质的波导系统中的相关损失。我们计算出该设置提供了100个DB泵抑制的可能性,而无需额外的过滤。通过驾驶通过工程耗散强烈衰减的对称集体模式来达到效果,而Photon对诞生在反对称模式中。另外可以实现类似的设置,用于产生双光子中午状态,也可以用泵自我抑制。我们通过相干的扩散光子讨论该方案的实施,并在磷化铟(InP)和硅中,在玻璃(例如熔融二氧化硅 - 玻璃和IG2)和平面半导体波导结构中进行脱离其可行性。

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