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Low switching voltage Mach-Zehnder modulator monolithically integrated with DFB laser for data transmission up to 107.4 Gb/s

: Lange, S.; Gruner, M.; Meuer, C.; Kaiser, R.; Hamacher, M.; Velthaus, K.O.; Schell, M.


Journal of Lightwave Technology 34 (2016), Nr.2, S.401-406
ISSN: 0733-8724
Optical Fiber Communications Conference (OFC) <2015, Los Angeles/Calif.>
Zeitschriftenaufsatz, Konferenzbeitrag
Fraunhofer HHI ()

We present a transmitter optical subassembly consisting of an InP-based travelling wave electrode Mach-Zehnder modulator monolithically integrated with a distributed feedback laser. At 56-Gb/s non-return-to-zeroON/OFF keying (NRZ-OOK), we achieve 3.5-km transmission before breaking the hard decision forward error correction threshold (3.8x10(-3)). 9-km transmission is achieved at 71.6-Gb/s 4-pulse-amplitude modulation (PAM4) and 5 km at 107.4 Gb/s PAM8. The modulation voltage is between 1.5 and 2 V, leading to overall power consumption of 171 mW for the NRZ-OOK case and 206 mW at PAM4 and PAM8.