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A laser pulse of energy 1 pJ and wavelemgth 800 nm is transmitted down an optical...

A laser pulse of energy 1 pJ and wavelemgth 800 nm is transmitted down an optical fiber with a loss of 3 dB/km. Calculate the maximum distance that the pulses can propagate before the probability that a pulse contains no photons exceeds 10^-9.Discuss the implications of this result for data communications.

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