Novel Hybrid Photonic-RF Ultrawideband Wireless Communications Technologies

ECCS-0701448A.Weiner，普渡大学智力优势：基于光子-射频混合系统的新颖设计和实现技术将给超宽带(UWB)通信技术带来革命性的变化，是本工作的主要重点。建议的UWB架构的主干包括相对较少的能够在色散和多径环境中合成、接收和校正任意UWB波形的复杂的光子使能接入节点。该网络的客户将包括大量廉价的带有集成片上光子电路的RF UWB节点。任意光子产生的超宽带波形与射频和光子电路的多样性相结合，将使复杂的编码方案能够有效地解决许多具有挑战性的问题，包括多路径、天线色散和光子体积。广泛影响：这项研究的更广泛影响将在三个不同领域显而易见：1)技术/经济：主要研究员在飞秒脉冲整形方面的开创性工作将首次导致独特的经济可行的概念，如啁啾超宽带雷达和芯片级任意波形发生器。2)本科生研究机会和促进多样性：每年夏天将至少有一名美国本科生兼研究人员接受指导，要么是与普渡大学本科生夏季本科生研究奖学金(SURF)计划有关，要么是与印第安纳州为从代表性不足的群体中招募学生研究人员而设立的适当计划有关。调查人员在吸引和留住少数族裔学生方面已经有记录，包括通过中西部教授研究生教育联盟。

ECCS-0701448A.Weiner, Purdue UniversityIntellectual Merit: Novel design and implementation techniques based on hybrid photonic-RF systems that will revolutionize the ultra wideband (UWB) communication technology are the major focus of this work. The backbone of the proposed UWB architecture includes relatively few sophisticated photonically-enabled access nodes that are capable of synthesizing, receiving and correcting arbitrary UWB waveforms in dispersive and multipath environments. The clients of this network will include a large number of inexpensive RF UWB nodes with integrated on-chip photonic circuits. The arbitrary photonically-generated UWB waveforms in conjunction with the diversity of RF and photonic circuits will enable complex coding schemes that effectively address many challenging issues including multipath, antenna dispersion and photonics volume.Broader Impact: The broader impacts of this research will be evident in three different areas: 1) Technology/Economic: The pioneering work of the principal investigator in femtosecond pulse shaping will lead for the first time to unique economically-feasible concepts such as chirped UWB radars and chip-level arbitrary waveform generators. 2) Undergraduate student research opportunities and diversity promotion: At least one US undergraduate student-researcher will be supervised each summer, either in connection with the Summer Undergraduate Research Fellowship (SURF) program for Purdue undergraduates or in connection with appropriately established programs in Indiana for recruiting student-researchers from underrepresented groups. The investigators already have a record in attracting and retaining minority students including through the Midwest Alliances for Graduate Education in the Professoriate.