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yoyomabuaa新虫 (小有名气)
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[求助]
小弟求助一道Microwave Photonics的题，急！~谢谢大家
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The light from two semiconductor lasers is coupled into an optical fiber and detected with a photo-detector. The detector is connected to an RF spectrum analyzer (RFSA). The wavelengths of the two lasers are 1550.1 nm and 1555.0 nm, each laser having a linewidth of 100 MHz. What will be observed on the RFSA? (at what frequencies, and with what linewidths) professor 出的 我认为是拍频，他说不对...求高手解答！！ |
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