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

ecs - 0636593 f。该项目的目标是开发能够实现高增益混合无线/光学链路的激光源。本文提出的研究旨在开发具有超高调制效率的半导体激光器，该激光器可以在不增加成本、功率预算、噪声预算和牺牲链路带宽的情况下，将光链路增益提高多达40 dB。所提出的激光源可用于实现无放大器的混合射频/无线光（光纤/自由空间）链路，其中链路本身将充当放大器。拟议的研究计划还包括无放大器混合射频/无线光（光纤/自由空间）链路的演示，该链路具有高链路增益，带宽在1-10 GHz范围内。这种设备的可用性将使廉价、经济、高效的混合微蜂窝和微蜂窝网络模块成为可能，这些模块将允许RF（无线）和光域之间的信息无缝流动。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，为研究生提供丰富的研究领域。拟议的工作将支持康奈尔大学的两名研究生和一名本科生的研究。课程开发将与研究工作紧密结合。PI将继续开发由PI最近开发并在康奈尔大学提供的电磁场与波和半导体光电子学课程。拟议的工作还整合了面向高中（K-12）学生和教师的外展计划，以及为高中学生开发桌面光链路教育模块。本文提出的研究旨在开发具有超高调制效率的半导体激光器，该激光器可以在不增加成本、功率预算、噪声预算和不牺牲带宽的情况下，将光链路增益提高多达40 dB。所提出的设备可以使混合射频/无线光（光纤/自由空间）链路具有净增益（以dB为单位），即使存在较大的链路衰减。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差分量子效率，可以比传统半导体激光器大50-100倍。所提出的激光器可用于实现无放大器的混合射频/无线光（光纤/自由空间）链路，其中链路本身将充当放大器。这种设备的可用性将使廉价、经济、高效的混合微蜂窝和微蜂窝网络模块成为可能，这些模块将允许RF（无线）和光域之间的信息无缝流动。拟议的研究计划还包括无放大器混合射频/无线光（光纤/自由空间）链路的演示，该链路具有高链路增益，带宽在1-10 GHz范围内。更广泛的影响拟议项目的成功完成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的两名研究生和一名本科生的研究。课程开发将与研究工作紧密结合。PI将继续开发由PI最近开发并在康奈尔大学提供的电磁场与波和半导体光电子学课程。这些课程将结合光学和微波/射频/无线前沿技术的基本原理，并为本科生提供实践培训。拟议的工作还整合了面向高中（K-12）学生和教师的外展项目。PI将参加由康奈尔大学各个NSF资助中心组织的教师培训研讨会，并将开发使用激光、探测器和光纤的光链路的桌面教育模块。参与研究的研究生也将帮助开发高中学生的教育模块。

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.