Silicon and hybrid silicon photonic devices for intra-datacenter applications: state of the art and perspectives [Invited]  

作　　者：Yu Li Yu Zhang Lei Zhang Andrew W.Poon 

机构地区：[1]Photonic Device Laboratory,Department of Electronic and Computer Engineering,The Hong Kong University of Science and Technology [2]State Key Laboratory on Integrated Optoelectronics,Institute of Semiconductors,Chinese Academy of Sciences

出　　处：《Photonics Research》2015年第5期10-27,共18页光子学研究（英文版）

基　　金：financial support from the National Science Foundation of China (NSFC);the Research Grants Council (RGC) of the Hong Kong Special Administrative Region (HKSAR) under project N_HKUST606/10;the State Key Laboratory on Integrated Optoelectronics, China;Open Fund of the State Key Laboratory on Integrated Optoelectronics under project IOSKL2013KF04;the Innovation and Technology Fund (ITF) of the HKSAR under project ITS/023/14 and ITS/087/13;the Proof-of-Concept Fund (PCF) of The Hong Kong University of Science and Technology (HKUST) under project no. PCF007.12/13;the General Research Fund (GRF) of the HKSAR under project no. 16208114;postdoctoral fellowship support from the Hong Kong Scholars Program 2013

摘　　要：We review the state of the art and our perspectives on silicon and hybrid silicon photonic devices for optical interconnects in datacenters. After a brief discussion of the key requirements for intra-datacenter optical interconnects, we propose a wavelength-division-multiplexing(WDM)-based optical interconnect for intra-datacenter applications. Following our proposed interconnects configuration, the bulk of the review emphasizes recent developments concerning on-chip hybrid silicon microlasers and WDM transmitters, and silicon photonic switch fabrics for intra-datacenters. For hybrid silicon microlasers and WDM transmitters, we outline the remaining challenges and key issues toward realizing low power consumption, direct modulation, and integration of multiwavelength microlaser arrays. For silicon photonic switch fabrics, we review various topologies and configurations of high-port-count N-by-N switch fabrics using Mach–Zehnder interferometers and microring resonators as switch elements, and discuss their prospects toward practical implementations with active reconfiguration.For the microring-based switch fabrics, we review recent developments of active stabilization schemes at the subsystem level. Last, we outline several large challenges and problems for silicon and hybrid silicon photonics to meet for intra-datacenter applications and propose potential solutions.We review the state of the art and our perspectives on silicon and hybrid silicon photonic devices for optical interconnects in datacenters. After a brief discussion of the key requirements for intra-datacenter optical interconnects, we propose a wavelength-division-multiplexing(WDM)-based optical interconnect for intra-datacenter applications. Following our proposed interconnects configuration, the bulk of the review emphasizes recent developments concerning on-chip hybrid silicon microlasers and WDM transmitters, and silicon photonic switch fabrics for intra-datacenters. For hybrid silicon microlasers and WDM transmitters, we outline the remaining challenges and key issues toward realizing low power consumption, direct modulation, and integration of multiwavelength microlaser arrays. For silicon photonic switch fabrics, we review various topologies and configurations of high-port-count N-by-N switch fabrics using Mach–Zehnder interferometers and microring resonators as switch elements, and discuss their prospects toward practical implementations with active reconfiguration.For the microring-based switch fabrics, we review recent developments of active stabilization schemes at the subsystem level. Last, we outline several large challenges and problems for silicon and hybrid silicon photonics to meet for intra-datacenter applications and propose potential solutions.

关 键 词：rate Invited Silicon and hybrid silicon photonic devices for intra-datacenter applications state of the art and perspectives 

分 类 号：TN248[电子电信—物理电子学] TP308[自动化与计算机技术—计算机系统结构]