Telefonaktiebolaget Lm Ericsson (publ)

Bimal Nayar

Antonella Bogoni

Luca Poti

Gianluca Berrettini

Mirco Scaffardi

Rodolfo Di Muro

An optical transmitter apparatus comprises at least three input transmitters that each provide at an output an NRZ optical signal, at least two of the NRZ optical signals having substantially the same bit rate, each of the signals having a bit rate which is less than 100 Gbit/s and the sum of the bit rates of all of the at least three transmitters being equal to or greater than 100 Gbit/s, an NRZ to RZ converter associated with each transmitter which converts each NRZ signal into an optical RZ signal, an optical time division multiplexer which converts the RZ signals into at least two further signals, and a polarization multiplexer which processes the two further signals to provide two output signals of differing polarization.

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Milton Keyne, United Kingdom

Bimal Nayar