A 56-Gb/s Reconfigurable Silicon-Photonics Transmitter Using High-Swing Distributed Driver and 2-Tap In-Segment Feed-Forward Equalizer in 65-nm CMOS
In: IEEE Transactions on Circuits and Systems I: Regular Papers, Jg. 69 (2022-03-01), S. 1159-1170
Online
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Zugriff:
This article presents a reconfigurable silicon- photonics transmitter (TX) for short-reach optical interconnects. The proposed hybrid-integrated TX combines a 65-nm CMOS driver with a 180-nm SOI-CMOS silicon-photonic Mach-Zehnder Modulator (MZM). The driver integrated with in-segment fractional-UI spaced feed-forward equalizer (FFE) is proposed to support the non-return-zero (NRZ) signaling, electrical- and optical-domain 4-level pulse-amplitude modulation (PAM-4) signaling. The driver employs a reconfigurable distributed topology to achieve high swing, wide bandwidth and flexible operation. The MZM is driven differentially in a push-pull configuration for high modulation efficiency. Measurement results show that the proposed TX operates up to 50-Gb/s NRZ data rate with 4-Vppd swing and 1.92-ps RMS jitter. In the optical PAM-4 mode, it reaches 56-Gb/s data rate and achieves >5-dB extinction ratio (ER) at the cost of 10.9-pJ/bit power efficiency.
| Titel: |
A 56-Gb/s Reconfigurable Silicon-Photonics Transmitter Using High-Swing Distributed Driver and 2-Tap In-Segment Feed-Forward Equalizer in 65-nm CMOS
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| Autor/in / Beteiligte Person: | He, Jian ; Zhang, Yuguang ; Qi, Nan ; Chen, Yong ; Liao, Qiwen ; Xiao, Xi ; Li, Miaofeng ; Liu, Jian ; Wu, Nanjian ; Liu, Han ; Jiang, Fan ; Chiang, Patrick ; Yu, Ningmei ; Zhang, Zhao ; Shi, Jingbo |
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| Zeitschrift: | IEEE Transactions on Circuits and Systems I: Regular Papers, Jg. 69 (2022-03-01), S. 1159-1170 |
| Veröffentlichung: | Institute of Electrical and Electronics Engineers (IEEE), 2022 |
| Medientyp: | unknown |
| ISSN: | 1558-0806 (print) ; 1549-8328 (print) |
| DOI: | 10.1109/tcsi.2021.3127723 |
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