这就是用于检测微弱光的单光子计数器。
This system used for testing weak light is called single-photon counter.
这就是用于检测微弱光的单光子计数器。
The most important parameter in the single-photon counter is the total sensitivity.
使用发光二极管制成标准光源来进行校验和标定光子计数器是一种较好的解决方法。
So it's a nice solution that a photon counter can be calibrated conveniently by the LED weak standard light source.
如果量子密码开始工作，这样的光子计数器是必不可少的，因为这样一来将可以使用量子中继器。
Such a photon counter is essential if quantum cryptography is to work, because it will allow what are known as quantum Repeaters to be built.
实验结果表明，由于光子计数器的核心器件光电倍增管及其高压电源不很稳定，光子计数器需要经常校验和标定。
Experimental results shows that the core device of the photon counter-PMT and it's high voltage power supply is not stable, the photon counter can be test and calibrated frequently.
实验结果表明，由于光子计数器的核心器件光电倍增管及其高压电源不很稳定，光子计数器需要经常校验和标定。
Experimental results shows that the core device of the photon counter-PMT and it's high voltage power supply is not stable, the photon counter can be test and calibrated frequently.
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