Lee B.-YTsai C.-TLin H.-SKao S.-CCheng C.-HChiang P.YLee H.-CGONG-RU LINHSIANG-CHIEH LEE2021-09-022021-09-02202100189197https://www.scopus.com/inward/record.uri?eid=2-s2.0-85102631595&doi=10.1109%2fJQE.2021.3064271&partnerID=40&md5=6fd3110e7eb6d888083a758a0ea1d3d5https://scholars.lib.ntu.edu.tw/handle/123456789/580804A low-power-consumption single-arm-driven silicon (Si) Mach-Zehnder modulator (MZM) operated at C-band ( $\lambda =1550$ nm) for non-return-to-zero on-off-keying (NRZ-OOK) transmission beyond 50 Gbit/s over 10-km single-mode fiber (SMF) and dispersion-shift fiber (DSF) is demonstrated to guarantee the IEEE 802.3bs standardized 400GBASE-FR8/LR8 operation. The Si MZM exhibits asymmetric waveguide arms and 2-mm-contact-length phase shifter under carrier depletion operation in its p-n junction, which is DC biased as low as 2 V to provide a low $\text{V}_{\pi }\text{L}$ product of $0.909~\text {V}\cdot \text {cm}$. For the error-free transmission of the NRZ-OOK data-stream, the single-arm-driven Si MZM supports the highest data rates of 53, 53 and 50 Gbit/s over optical back-to-back, 2-km SMF and 10-km DSF transmissions, respectively. The 50-Gbit/s receiving power penalties are respectively 0.2 and 0.25 dB after 2-km SMF and 10-km DSF propagation. ? 1965-2012 IEEE.Data streams; Light modulators; Semiconductor junctions; Silicon; Single mode fibers; Transmissions; Waveguides; Asymmetric waveguides; Carrier depletion; Error free transmission; Low-power consumption; Mach Zehnder modulator; Non-return to zeros; Receiving power; Silicon waveguide; Amplitude shift keyingjournal article10.1109/JQE.2021.30642712-s2.0-85102631595