SBIR Phase I: 40-100 Gbps VCSEL with Push-Pull Modulation

SBIR 第一阶段：采用推挽调制的 40-100 Gbps VCSEL

• 批准号: 1142810
• 负责人: Mary Hibbs-Brenner
• 金额: $ 15万
• 依托单位: Mytek, LLC
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-01-01 至 2012-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1142810&HistoricalAwards=false
• 关键词: SBIR; Phase; 40; 100; Gbps

This Small Business Innovation Research Phase I project proposes to demonstrate a Composite Resonator VCSEL (CRVCL) which will achieve a 40-100Gbps data transmission rate. For more than a decade VCSELs have been the engine driving bandwidth increases at shorter distances (300 meters) between cabinets in high performance computers, in local area networks (LANs) and storage area networks (SANs), but it appears that conventional VCSEL technology may be running out of steam somewhere between 20 and 30Gbps. The proposed approach is unique in that it avoids the relaxation oscillation limitations on modulation speed through the use of a dual cavity VCSEL operated in a push-pull configuration. The concept dramatically increases the data rate by keeping the current density constant while modulating the light to be emitted from the surface or directed to the substrate. The goals of the Phase I project are to fabricate a CRVCL, demonstrate the push-pull nature of the modulation to a minimum of 20GHz, and demonstrate the elimination or dramatic reduction in relaxation oscillations. If successful, the demonstration of the 40-100Gbps large signal modulation will be proposed for a Phase II project.The broader impact/ commercial potential of this project is to enable the continued expansion of bandwidth within LANs, SANs and between cabinets of high performance computers. In addition, a 40Gbps+ VCSEL will be a breakthrough technology for overcoming the interconnect bottlenecks between boards within a cabinet, and within a board. Copper based interconnects are increasingly the limiting factor in system performance due to their size and power consumption, but the replacement by optical interconnects will require high speed per channel (40Gbps), very low power, high reliability, and low cost. This project concept addresses all four considerations. Higher speed devices feed the bandwidth expansion allowing the continued improvements in business productivity, management of medical information, and entertainment options we have come to expect, and helps maintain the U.S. competitiveness and employment in the networking market. The reduction in power consumption helps achieve the industry and government goals for reducing the power consumption of data centers. The successful development of this technological enhancement will help the U.S. maintain its leading position in the computing and networking industries.

这个小型企业创新研究阶段项目提议展示复合谐振器VCSEL（CRVCL），该谐振器将达到40-100Gbps的数据传输速率。 十多年来，VCSEL一直是发动机驱动带宽在高性能计算机，局部网络（LAN）和存储区域网络（SANS）中较短的距离（300米）时的驱动带宽增加，但似乎传统的VCSEL技术可能在20到30GBP之间的蒸汽运行。 所提出的方法是独一无二的，因为它可以通过使用以推扣配置操作的双腔VCSEL来避免调制速度的放松振荡限制。 该概念通过保持电流密度恒定而在调节从表面发射或针对基板的光线的同时大大提高数据速率。 I阶段项目的目标是制造CRVCL，证明调制的推力性质至少为20GHz，并证明了放松振荡的消除或急剧减少。 如果成功的话，将为II期项目提出40-100Gbps的大型信号调制。该项目的更广泛的影响/商业潜力是使LAN，SANS，SANS和高性能计算机之间的带宽持续扩展。 此外，40Gbps+ VCSEL将是一项突破性的技术，用于克服机柜内和板内板之间的互连瓶颈。 基于铜的互连越来越多地是系统性能的限制因素，因为它们的尺寸和功耗，但是光学互连的替换将需要每个通道（40GBPS），非常低的功率，高可靠性和低成本。 这个项目概念涉及所有四个考虑因素。 更高的速度设备为带宽的扩展提供了扩展，从而可以持续提高我们所期望的业务生产力，医疗信息管理以及娱乐选择，并帮助维持美国在网络市场中的竞争力和就业。 减少功耗有助于实现减少数据中心功耗的行业和政府目标。 这种技术增强的成功发展将有助于美国在计算和网络行业中保持领先地位。