L
Lei Xu
Researcher at Merck & Co.
Publications - 290
Citations - 4712
Lei Xu is an academic researcher from Merck & Co.. The author has contributed to research in topics: Low-density parity-check code & Wavelength-division multiplexing. The author has an hindex of 33, co-authored 279 publications receiving 4465 citations. Previous affiliations of Lei Xu include NEC & Tsinghua University.
Papers
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Journal ArticleDOI
OSA: an optical switching architecture for data center networks with unprecedented flexibility
Kai Chen,Ankit Singla,Atul Singh,Kishore Ramachandran,Lei Xu,Yueping Zhang,Xitao Wen,Yan Chen +7 more
TL;DR: The design, implementation, and evaluation of OSA are presented, a novel Optical Switching Architecture for DCNs that dynamically changes its topology and link capacities, thereby achieving unprecedented flexibility to adapt to dynamic traffic patterns.
Proceedings ArticleDOI
Proteus: a topology malleable data center network
TL;DR: Proteus is proposed, an all-optical architecture targeting unprecedented topology-flexibility, lower complexity and higher energy efficiency, that is, an oversubscribed network architectures that can adapt the topology to meet traffic demands.
Journal ArticleDOI
All-optical data format conversion between RZ and NRZ based on a Mach-Zehnder interferometric wavelength converter
TL;DR: In this article, the authors demonstrate all-optical conversion between two different data formats: return-tozero (RZ) and non-return-to-zero (NRZ) using a Mach-Zehnder interferometric wavelength converter.
Proceedings ArticleDOI
Optimizing Bulk Transfers with Software-Defined Optical WAN
TL;DR: Owan is presented, a novel traffic management system that optimizes wide-area bulk transfers with centralized joint control of the optical and network layers with efficient algorithms to jointly optimize optical circuit setup, routing and rate allocation, and dynamically adapt them to traffic demand changes.
Journal ArticleDOI
DWDM optical millimeter-wave generation for radio-over-fiber using an optical phase modulator and an optical interleaver
TL;DR: In this paper, an optical phase modulator and an optical interleaver are used to suppress the optical carrier of the DWDM source, which is not as temperature sensitive as a fiber Bragg grating.