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optical coherent communication system
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optical coherent communication system
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光传输系统
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optical coherent communication system
相干光通信系统
在接收端采用本振激光器与接收信号进行相干混频,实现相干检测,同时接收光信号的幅度、相位、频率和偏振等多种信息的光传输系统。
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origin of agriculture
origin of a vector
origin of C4 plants
origin of civilization
origin of coal
origin of coordinates
origin of dry-land agriculture
origin of early hominins
origin of elements
origin of game
Origin of life
origin of longitude
origin of modern human
origin of modern humans
origin of news
origin of oil and gas
origin of play
origin of rapeseed
origin of replication
origin of rice agriculture
origin of species
origin of state
origin of the earth's magnetic field
origin of the edge
Origin of the Moon
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