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Optical signal-to-noise ratio measuring device and optical signal-to-noise ratio measuring method
Optical signal-to-noise ratio measuring device and optical signal-to-noise ratio measuring method
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机译:光学信噪比测量装置和光学信噪比测量方法
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摘要
An optical signal-to-noise ratio (OSNR) measuring device includes a processor, wherein the processor executes a process. The process includes: converting an optical signal to an electrical signal; first acquiring a signal intensity from the electrical signal; second acquiring a noise intensity of a predetermined frequency band from the electrical signal; performing a digital conversion on the noise intensity; and computing an OSNR of the optical signal based on the signal intensity and the converted noise intensity. The predetermined frequency band is a frequency band including a folding noise that occurs when the digital conversion is performed.
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