dense wavelength-division multiplexing (DWDM)

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A 32-Gb/s/λ, 256-Gb/s/Fiber Half-Rate Bandpass-Filtered Clock-Forwarding DWDM Optical Link in a 3-D-Stacked 7-nm EIC/65-nm PIC Technology

A 32-Gb/s/λ, 256-Gb/s/Fiber Half-Rate Bandpass-Filtered Clock-Forwarding DWDM Optical Link in a 3-D-Stacked 7-nm EIC/65-nm PIC Technology 150 150
Author(s): Sanquan Song, Nikola Nedovic, Nandish Mehta, Angad S. Rekhi, Georgios Kalogerakis, Li Xu, Brian Zimmer, Stephen G. Tell, Yoshinori Nishi, Xi Chen, Ward Lopes, Benjamin G. Lee, Thomas H. Greer, C. Thomas Gray

Abstract:

We present a 32-Gb/s/ $\lambda $ dense wavelength-division multiplexing (DWDM) bandpass-filtered clock-forwarding link with nine channels on a 200-GHz grid: eight for data and one for clock forwarding, intended for next-generation co-packaged optics (CPO). Using an injection-locked oscillation (ILO) technique for jitter filtering, the forwarded clock (FWDCLK) tracks most of …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 18
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3733977
Publisher: IEEE

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