A 40 Gb/s Chip-to-Chip Interconnect for 8-Socket Direct Connectivity Using Integrated Photonics

A 40 Gb/s Chip-to-Chip Interconnect for 8-Socket Direct Connectivity Using Integrated Photonics

We present an O-band any-to-any chip-to-chip (C2C) interconnection at 40 Gb/s suitable for up to 8-socket direct connectivity in multi-socket server boards, utilizing integrated low-energy photonics for the transceiver and routing functions. The C2C interconnect exploits an Si-based ring...

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Bibliographic Details
Main Authors: Stelios Pitris, Miltiadis Moralis-Pegios, Theonitsa Alexoudi, Joris Lambrecht, Xin Yin, Johan Bauwelinck, Yoojin Ban, Peter De Heyn, Marianna Pantouvaki, Joris Van Campenhout, Ronald Broeke, Nikos Pleros
Format: Article
Language:English
Published: IEEE 2018-01-01
Series:IEEE Photonics Journal
Subjects:
Optical interconnections
Wavelength routing
Silicon photonics
Photonic integrated circuits
Online Access:https://ieeexplore.ieee.org/document/8481442/
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Summary:We present an O-band any-to-any chip-to-chip (C2C) interconnection at 40 Gb/s suitable for up to 8-socket direct connectivity in multi-socket server boards, utilizing integrated low-energy photonics for the transceiver and routing functions. The C2C interconnect exploits an Si-based ring modulator as its transmitter and a co-packaged photodiode/transimpedance amplifier enabled receiver interconnected over an 8 × 8 Si-based arrayed waveguide grating router, allowing for a single-hop flat-topology interconnection between eight nodes. A proof-of-concept demonstration of the C2C interconnect is presented at 25 and 40 Gb/s for eight possible routing scenarios, revealing clear eye diagrams at both data rates with extinction ratios of 4.8 ± 0.3 and 4.38 ± 0.31 dB, respectively, among the eight routed signals.
ISSN:1943-0655

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