O-Band Reflective Electroabsorption Modulator for 50 Gb/s NRZ and PAM-4 Colorless Transmission

08 March 2020

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We present a 50 Gb/s O-band reflective electroabsorption modulator operating in both non-return-to-zero (NRZ) and PAM-4 modulation formats without equalization. We obtained >9 dB NRZ dynamic extinction ratio for a peak-to-peak voltage of 2.4 V.