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You can use a reverse saturable absorber in such a way that the threshold of the RSA must be such that the RSA transmits only the AC part and acts as an opaque object for the DC signal.


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The propagation speed and the symbol rate are completely different concepts. The symbol rate is the rate at which you can transmit information (hence 'symbols'), and it is closely related to the bandwidth, which is the span of frequencies which can propagate well through the wire. The relationship between the symbol rate and the bandwidth was recently ...



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