隨著量子力學的發展，量子資訊漸漸變成一門獨立的學問，尤其在量子通訊的領域中光子扮演了非常重要的角色，因此如何產生良好的單光子以及糾纏光子源可以說是最基本也是最核心的課題。
在本實驗中我們使用高產率時間-能量糾纏光子源，透過Photodetector Post-Selection的方式產生預期detection rates約可為13000(s-1/mW)的高效率偏振糾纏光子，與過去用同晶體得到的探測效率相比仍然算高。我們以CHSH inequality以及CHSH like steering inequality驗證了這對糾纏光子彼此之間具有量子的非局域性以及操控性。最後調變時間-能量糾纏光子之間的頻率以及時間的可區分性，並用HOM 干涉儀去分析調變對總波函數造成的影響。

With the development of quantum mechanics, quantum information gradually became an independent subject. In this subject, photon plays a very important role; therefore, how to build a single photon source and also purity entangled bi-photon source are the core issues of the subject.
We use high detected rate time-energy entangled photons to generate polarization entangled photons with high flux by photodetector post-selection. Then, it is expected to have the detection rate up to 13000(s-1/mW) which is relatively high compared with the previous work. Furthermore, we verified our polarization entangled photons possesses quantum nonlocality and steerability by calculating CHSH inequality and CHSH like steering inequality. In the end, we manipulate either the frequency or time distinguishability between a pair of the time-energy entangled photons to analyze the properties of the total wavefunction with the help of Hong-Ou-Mandel interferometer.

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