TCHCS: Ultra-High Modulation Efficiency Semiconductor Lasers for RF(Wireless)-Optical(Fiber/Free-Space) Hybrid Links

ECS-0636593F。康奈尔大学拉纳该项目的目标是开发能够实现高增益混合无线/光纤链路的激光光源。这里提出的研究目的是开发具有超高调制效率的半导体激光器，在不增加成本、功率预算、噪声预算的情况下，在不牺牲链路带宽的情况下，可以将光链路增益提高高达40dB。所提出的激光光源可用于实现无放大器的RF/无线-光(光纤/自由空间)混合链路，其中链路本身将充当放大器。拟议的研究计划还包括演示无放大器混合RF/无线光纤(光纤/自由空间)链路，具有高链路增益和1-10 GHz范围的带宽。此类设备的提供将实现廉价、成本效益高和高能效的混合微蜂窝和微微蜂窝网络模块，从而实现射频(无线)和光域之间的无缝信息流。拟议的项目将涉及从设备设计和制造到连接设计和开发的跨学科研究，为研究生研究提供丰富的领域。拟议的工作将支持康奈尔大学两名研究生和一名本科生的研究。课程开发将有力地融入研究工作。国际和平研究所将继续开发电磁场和波以及半导体光电子学课程，这些课程是由国际和平研究所最近开发的，并在康奈尔大学提供。拟议的工作还包括面向高中(K-12)学生和教师的外联方案，以及为高中生开发桌面光学链接教育模块。智能优点这里提出的研究旨在开发具有超高调制效率的半导体激光器，可以在不增加成本、功率预算和噪声预算的情况下，在不牺牲带宽的情况下，将光链路增益提高多达40分贝。即使在存在较大的链路衰减的情况下，所提出的器件也可以使RF/无线-光纤(光纤/自由空间)混合链路具有净正增益(以分贝为单位)。如此大的链路增益值是可以实现的，因为所提出的激光器具有比传统半导体激光器大50-100倍的微分量子效率。所提出的激光器可用于实现无放大器的RF/无线-光(光纤/自由空间)混合链路，其中链路本身将充当放大器。此类设备的提供将实现廉价、成本效益高和高能效的混合微蜂窝和微微蜂窝网络模块，从而实现射频(无线)和光域之间的无缝信息流。拟议的研究计划还包括演示无放大器混合RF/无线光纤(光纤/自由空间)链路，具有高链路增益和1-10 GHz范围的带宽。更广泛的影响成功完成拟议的项目将涉及从设备设计和制造到连接设计和开发的跨学科研究，为研究生研究提供丰富的领域。拟议的工作将支持康奈尔大学两名研究生和一名本科生的研究。课程开发将有力地融入研究工作。国际和平研究所将继续开发电磁场和波以及半导体光电子学课程，这些课程是由国际和平研究所最近开发的，并在康奈尔大学提供。这些课程将基本原理与光学和微波/射频/无线尖端技术相结合，并为本科生提供实践培训。拟议的工作还纳入了面向高中(K-12)学生和教师的外展计划。PI将参加由美国国家科学基金会资助的康奈尔大学各个中心组织的教师培训讲习班，并将使用激光、探测器和光纤开发桌面光学链路教育模块。从事这项研究的研究生还将帮助为高中生开发教育模块。

ECS-0636593F. Rana, Cornell UniversityThe goal of this project is to develop laser sources that will enable high gain hybrid wireless/optical links. The research proposed here aims to develop semiconductor lasers with ultra-high modulation efficiencies that can increase optical link gains by as much as 40 dB, without adding to the cost, power budget, noise budget, and without sacrificing the link bandwidth. The proposed laser sources could be used to realize amplifier-free hybrid RF/wireless-optical (fiber/free-space) links where the link itself would act as the amplifier. The proposed research plan also includes demonstrations of amplifier-free hybrid RF/wireless-optical (fiber/free-space) links with high link gains and with bandwidths in the 1-10 GHz range. The availability of such devices would enable cheap, cost-effective, and power efficient hybrid micro-cellular and pico-cellular network modules that would allow seamless flow of information between the RF (wireless) and the optical domains. The proposed project would involve interdisciplinary research from device design and fabrication to link design and development providing a rich set of areas for graduate student research. The proposed work will support the research of two graduate students and one undergraduate student at Cornell University. Curriculum development will be strongly integrated into the research work. The PI will continue to develop the courses Electromagnetic fields and Waves and Semiconductor Optoelectronics that were recently developed by the PI and are offered at Cornell. The proposed work also integrates outreach programs geared towards high school (K-12) students and teachers and development of table-top educational modules of optical links for high school students. Intellectual MeritsThe research proposed here aims to develop semiconductor lasers with ultra-high modulation efficiencies that can increase optical link gains by as much as 40 dB, without adding to the cost, power budget, noise budget, and without sacrificing the bandwidth. The proposed devices could enable hybrid RF/wireless-optical (fiber/free-space) links with net positive gain (in dB) even in the presence of large link attenuation. Such large link gain values are achievable because the proposed lasers have differential quantum efficiencies that can be 50-100 times larger than those of conventional semiconductor lasers. The proposed lasers could be used to realize amplifier-free hybrid RF/wireless-optical (fiber/free-space) links where the link itself would act as the amplifier. The availability of such devices would enable cheap, cost-effective, and power efficient hybrid micro-cellular and pico-cellular network modules that would allow seamless flow of information between the RF (wireless) and the optical domains. The proposed research plan also includes demonstrations of amplifier-free hybrid RF/wireless-optical (fiber/free-space) links with high link gains and with bandwidths in the 1-10 GHz range. Broader ImpactsA successful completion of the proposed project would involve interdisciplinary research from device design and fabrication to link design and development providing a rich set of areas for graduate student research. The proposed work will support the research of two graduate students and one undergraduate student at Cornell University. Curriculum development will be strongly integrated into the research work. The PI will continue to develop the courses Electromagnetic fields and Waves and Semiconductor Optoelectronics that were recently developed by the PI and are offered at Cornell. These courses will integrate fundamental principles with optical and microwave/RF/wireless cutting edge technologies and provide hands-on training to undergraduate students. The proposed work also integrates outreach programs geared towards high school (K-12) students and teachers. The PI will participate in teacher training workshops organized by various NSF funded centers at Cornell University and will develop table top educational modules of optical links using lasers, detectors and optical fibers. The graduate students engaged in the research will also help develop educational modules for high school students.