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Microfiber-microcavity system for efficient single photon collection
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DOI：10.1364/OE.24.023471.png)
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摘要
En 中文
Single photon sources are key components for various quantum information processing. For practical quantum applications, bright single photon sources with efficient fiber-optical interfaces are highly required. Here, bright fiber-coupled single photon sources based on InAs quantum dots are demonstrated through the k-vector matching between a microfiber mode and a normal mode of the linear photonic crystal cavity. One of the modes of the linear photonic crystal cavity whose k-vector is similar to that of the microfiber mode is employed. From independent transmission measurement, the coupling efficiency directly into the fiber of 58% is obtained. When the quantum dot and cavity system is non-resonantly pumped with 80 MHz pulse train, a raw count rate of 1.81 MHz is obtained with g((2))(0) = 0.46. Resonant pump is expected to improve the rather high g((2))(0) value. Time-resolved photoluminescence is also measured to confirm the three-fold Purcell enhancement. This system provides a promising route for efficient direct fiber collections of single photons for quantum information processing. (C) 2016 Optical Society of America
Keyword:
QUANTUM-DOT
OPTICAL-FIBERS
SOLID-STATE
BRIGHT
GENERATION
RESONATOR
EMISSION
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IF:
3.3
论文数:
6.1W
被引数:
14.3W
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