在PLD光学系统中经常使用的光学元件有： 透镜及光阑（1enses and apertures）．反射镜（mirrors）、分光器（beam splitters） 等。
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beam splitters for infrared spectrum 红外光谱分光镜
THz Beam Splitters 太赫兹分束镜
polarizing beam splitters 偏振分束光栅
The devices used are beam splitters and ideal photon detectors capable of distinguishing between odd and even photon numbers.
该方案所使用的器件包括分束器和可以区分奇偶光子数的理想光子探测器。
Two-way light signals were transmitted, collected and converted by using lens, beam splitters, narrowband filters and photo-detectors.
通过透镜、二向分光镜、窄带滤光片、光电转换器件实现了两路光信号的传输采集和转换。
We present a quantum key distribution system based on two polarization beam splitters, by means of which the phase modulator's polarization dependence is cancelled out.
提出了利用两个偏振分束器的量子密钥分发系统，有效地解决了相位调制器的偏振依赖性问题。
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