Fronthaul based on pulse-width modulation in RSOA WDM PONS with broadband and coherent seeds


To avoid the bandwidth expansion of the optical digital fronthaul, recently it has been demonstrated that pulse-width modulation (PWM) is a viable solution for the analog optical fronthaul, as an alternative to standard radio over fiber. The PWM encodes the analog samples at the transmitter onto the duration of the on-off keyed optical signal, splitting the… (More)

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