Intra-Data Centre Flexible PAM Transmission System Using an Integrated InP-Si3N4 Dual Laser Module

IEEE Photonics Journal

Francisco J. Diaz-Otero¹  Liam P. Barry²  Marcos Troncoso-Costas³  Colm Browning³  Devika Dass³  Chris G. H. Roeloffzen⁴ 

[1] AtlanTTic Research Center, University of Vigo, EI Telecommunication, Campus Universitario s&x002F;LioniX International BV, Enschede, The Netherlands;School of Electronic Engineering, Dublin City University, Glasnevin, Ireland;n, Vigo, Spain;

关键词: Data centers;    FlexPAM;    integrated photonics;    PAM-16;   

DOI  :  10.1109/JPHOT.2021.3128767

来源: DOAJ

【 摘 要 】

Flexible Pulse Amplitude Modulation (FlexPAM) consists of the use of non-standard PAM formats, such as PAM-5 or PAM-6, to increase the granularity of the link capacity for a given baud rate. In this paper, we demonstrate FlexPAM systems as a scalable solution for future data center interconnects, introduce a symbol-to-bit mapping that minimizes the effect of intensity noise in the performance of non-power of two number of levels formats, and present experimental and simulation results of an unamplified FlexPAM transmission system over 1 km of single-mode fiber. 20 GBaud transmission was successfully demonstrated experimentally for modulation formats ranging from OOK up to PAM-16 using an integrated InP-Si₃N₄ laser. In addition, a simulation to closely replicate the experiment was used to determine the system requirements to achieve transmission rates of up to 200 Gbps on a single wavelength, at a baud rate of 53.5 Gbaud with component bandwidth limitations of 30 GHz.

【 授权许可】

Unknown