Wavelength division multiplexed and double-port pumped time-bin entangled photon pair generation using Si ring resonator
Wavelength division multiplexed and double-port pumped time-bin entangled photon pair generation using Si ring resonator
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DOI：
10.1364/oe.25.003445
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发表时间：
2017-02-20
期刊：
影响因子：
3.8
通讯作者：
Takeoka, Masahiro
中科院分区：
文献类型：
--
作者：
Fujiwara, Mikio;Wakabayashi, Ryota;Takeoka, Masahiro
本文报道了一种利用半径为10 μ m的硅环谐振器实现的电信波长波分复用时阱纠缠光子对源。这个紧凑的谐振器有两个添加端口和两个下降端口。通过连续激光器抽运一个添加端口，我们演示了在电信c波段有效地产生双波分复用时间盒纠缠光子对，这些光子对从一个丢弃端口发出，然后通过波长滤波器拆分为信号光子和空闲光子。谐振腔结构增强了四波混频对的产生。此外，我们还演示了双端口泵浦，其中注入两个反向传播的泵浦光同时从两个滴口产生纠缠。我们成功地观察到两个跌落端口的高纠缠输出。令人惊讶的是，每个滴口的计数率甚至比单口泵送的计数率提高了两倍。讨论了这种观察的可能机制。我们的技术允许有效地使用硅环谐振器，并扩大其各种应用的功能。(C) 2017年美国光学学会
We report a wavelength division multiplexed time-bin entangled photon pair source in telecom wavelength using a 10 mu m radius Si ring resonator. This compact resonator has two add ports and two drop ports. By pumping one add port by a continuous laser, we demonstrate an efficient generation of two-wavelength division multiplexed time-bin entangled photon pairs in the telecom C-band, which come out of one drop port, and are then split into the signal and idler photons via a wavelength filter. The resonator structure enhances four-wave mixing for pair generation. Moreover, we demonstrate the double-port pumping where two counter propagating pump lights are injected to generate entanglement from the two drop ports simultaneously. We successfully observe the highly entangled outputs from both two drop ports. Surprisingly, the count rate at each drop port is even increased by twice that of the single-port pumping. Possible mechanisms of this observation are discussed. Our technique allows for the efficient use of the Si ring resonator and widens its functionality for variety of applications. (C) 2017 Optical Society of America