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Recent advances in integrated photonics enable the implementation of reconfigurable, high-bandwidth, and low energy-per-bit interconnects in next-generation data centers. We propose and evaluate an Optically Connected Memory (OCM)…

Advanced silicon photonic technologies enable integrated optical sensing and communication (IOSAC) in real time for the emerging application requirements of simultaneous sensing and communication for next-generation networks. Here, we…

Signal Processing · Electrical Eng. & Systems 2023-07-12 Xiangpeng Ou , Ying Qiu , Ming Luo , Fujun Sun , Peng Zhang , Gang Yang , Junjie Li , Jianfeng Gao , Xiaobin He , Anyan Du , Bo Tang , Bin Li , Zichen Liu , Zhihua Li , Ling Xie , Xi Xiao , Jun Luo , Wenwu Wang , Jin Tao , Yan Yang

Neural networks have proven effective for solving many difficult computational problems. Implementing complex neural networks in software is very computationally expensive. To explore the limits of information processing, it will be…

Neural and Evolutionary Computing · Computer Science 2017-04-20 Jeffrey M. Shainline , Sonia M. Buckley , Richard P. Mirin , Sae Woo Nam

Traditional silicon-on-insulator (SOI) platform based on-chip photonic interconnects have limited energy-bandwidth scalability due to the optical non-linearity induced power constraints of the constituent photonic devices. In this paper, we…

Applied Physics · Physics 2020-03-27 Venkata Sai Praneeth Karempudi , Sairam Sri Vatsavai , Ishan Thakkar

Optical communication achieves high fanout and short delay advantageous for information integration in neural systems. Superconducting detectors enable signaling with single photons for maximal energy efficiency. We present designs of…

Neural and Evolutionary Computing · Computer Science 2018-11-14 Jeffrey M. Shainline , Sonia M. Buckley , Adam N. McCaughan , Jeff Chiles , Richard P. Mirin , Sae Woo Nam

We demonstrate a complete Silicon Photonics WDM link relying on a single section semiconductor mode-locked laser and a single SOA to support up to 12 multiplexed channels with a bit error rate of 1e-12 at serial data rates of 14 Gbps…

We demonstrate an all-photonic terahertz receiver for a data-modulated signal, targeting a 106-GHz, 2.97-Gb/s OOK link. The scheme employs dual-wavelength optical carriers referenced to a soliton microcomb and performs THz-to-optical…

A microwave-optical photon converter with high efficiency ($>50$ %) and low added noise ($\ll 1$ photon) could enable the creation of scalable quantum networks where quantum information is distributed optically and processed in the…

Quantum Physics · Physics 2025-02-25 M Khalifa , P S Kirwin , Jeff F Young , J Salfi

Low-loss fiber optic links have the potential to connect superconducting quantum processors together over long distances to form large scale quantum networks. A key component of these future networks is a quantum transducer that coherently…

The rapid expansion of generative AI drives unprecedented demands for high-performance computing. Training large-scale AI models now requires vast interconnected GPU clusters across multiple data centers. Multi-scale AI training and…

We report world record high data transmission over standard optical fiber from a single optical source. We achieve a line rate of 44.2 Terabits per second (Tb/s) employing only the C-band at 1550nm, resulting in a spectral efficiency of…

Applied Physics · Physics 2021-06-18 David J. Moss

A soliton microcomb can play a crucial role in narrow-grid optical communications by replacing many independently operated lasers in wavelength-division multiplexing systems. In this work, we designed and demonstrated power-efficient…

Optics · Physics 2024-02-29 Jingwei Li , Ruixuan Wang , Haipeng Zheng , Zhensheng Jia , Qing Li

We report world record high data transmission over standard optical fiber from a single optical source. We achieve a line rate of 44.2 Terabits per second (Tb/s) employing only the C-band at 1550nm, resulting in a spectral efficiency of…

Applied Physics · Physics 2021-04-02 Mengxi Tan , Xingyuan Xu , David J. Moss

Numerous modern technologies are reliant on the low-phase noise and exquisite timing stability of microwave signals. Substantial progress has been made in the field of microwave photonics, whereby low noise microwave signals are generated…

Increased traffic demands globally and in particular in short-reach links in data centers will require optical communication systems to continue scaling at an accelerated pace. Nevertheless, energy constraints start to limit the bit rate…

Signal Processing · Electrical Eng. & Systems 2018-06-07 Jose Krause Perin

Chip-integrated optical frequency combs (OFCs) based on Kerr nonlinear resonators are of great significance given their scalability and wide range of applications. Broadband on-chip OFCs reaching visible wavelengths are especially valuable…

We propose a time-multiplexed DS-DBR/SOA-gated system to deliver low-power fast tuning across S-/C-/L-bands. Sub-ns switching is demonstrated, supporting 122$\times$50 GHz channels over 6.05 THz using AI techniques.

Signal Processing · Electrical Eng. & Systems 2020-03-13 Thomas Gerard , Christopher Parsonson , Zacharaya Shabka , Polina Bayvel , Domaniç Lavery , Georgios Zervas

The generation of dissipative Kerr solitons in optical microresonators has provided a route to compact frequency combs of high repetition rate, which have already been employed for optical frequency synthesizers, ultrafast ranging, coherent…

Due to the emergence of new paradigms and services such as 5G/6G, IoT, and more, current deployed wired Data Center Networks (DCNs) are not meeting the required performance metrics due to their limited reconfigurability, scalability, and…

Networking and Internet Architecture · Computer Science 2022-03-22 Abrar S. Alhazmi , Sanaa H. Mohamed , T. E. H. El-Gorashi , Jaafar M. H. Elmirghani

We introduce PULSE, a sub-microsecond optical circuit-switched data centre network architecture controlled by distributed hardware schedulers. PULSE is a flat architecture that uses parallel passive coupler-based broadcast and select…

Networking and Internet Architecture · Computer Science 2023-07-19 Joshua L. Benjamin , Thomas Gerard , Domaniç Lavery , Polina Bayvel , Georgios Zervas