Flexible transmitter employing Silicon-segmented Mach–zehnder modulator with 32-nm CMOS distributed driver

Gill, D. M.
Rylyakov, Alexander
Green, William
Dupuis, Nicolas
Proesel, Jonathan
Baks, Christian
Schow, Clint L.
Lee, Benjamin
Huynh, Tam
Rimolo-Donadio, Renato

2016

Huynh, T., Dupuis, N., Rimolo-Donadio, R., Proesel, J., Gill, D., Baks, C., Rylyakov, A., Schow, C., Green, W., & Lee, B. (2016). Flexible transmitter employing Silicon-segmented Mach–zehnder modulator with 32-nm CMOS distributed driver. Journal of Lightwave Technology, 34(22), 5129- 5136.

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We propose a flexible optical transmitter for shortreach optical interconnects that includes a silicon photonic segmented Mach-Zehnder modulator (MZM) driven by a distributed six-channel 32nm SOI CMOS driver integrated circuit. Optical equalization is demonstrated to extend the bandwidth limitation of the transmitter with NRZ signaling at 25Gb/s. We also generate four-level pulse amplitude modulation (PAM-4) signaling using the same transmitter architecture. Transmission of 46Gb/s PAM-4 signal with bit error rate (BER) well below hard-decision forward error correction limit (BER=3.8×10-3) is experimentally demonstrated. Low driver power consumption of 130 mW at 46Gb/s PAM-4, corresponding to 2.8 pJ/bit power efficiency, is also achieved.

Artículo científico

Controladores; Moduladores; Interconexiones; Óptica; Fotónica; Research Subject Categories::TECHNOLOGY::Electrical engineering, electronics and photonics;