在自由空间量子密钥分配中，单光子源采用具有泊松分布的高度衰减激光脉冲，量子密码术协议采用BB 84和B92协议。
Highly attenuated laser pulses with Poisson distribution are used as single-photon sources and the BB84 and B92 protocols are used for free-space quantum key distribution.
本文给出脉冲式可调谐染料激光器的结构参数及其泵浦源的性能参数。
Constitutional parameters of the pulsed dye laser and properties of the pumping laser are given.
超短脉冲激光等离子体源作用时间超短，能量密度高，可调谐，易于控制。
The ultrashort pulse laser plasma source works in ultrashort time, with high energy density and is able to be tuned, controlled easily.
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