Ultrasensitive and Ultrafast Photonic Waveform Measurement Using Quasi-Phase-Matched Waveguide Nonlinear Optics

使用准相位匹配波导非线性光学进行超灵敏和超快光子波形测量

• 批准号: 0401515
• 负责人: Andrew Weiner
• 金额: $ 21万
• 依托单位: Purdue University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-06-01 至 2007-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0401515&HistoricalAwards=false
• 关键词: Ultrasensitive; Ultrafast; Photonic; Waveform; Measurement

0401515WeinerThe field of ultrafast optics has advanced in a truly revolutionary manner over the last ten to fifteen years. Several groups are now generating pulses only a few femtoseconds in duration in the visible and near-infrared, equal to just a few optical cycles; and sophisticated all-optical methods for waveform measurement and processing applicable to this extremely short time scale have been developed. Largely in parallel, the field of lightwave communications has also advanced in a revolutionary manner. However, pushing the speed of electronics significantly beyond the 40 Gb/s level is expected to be very challenging. This gives rise to the so-called "electronics bottleneck," since the inherent speed of optical signaling can be much faster than the available electronics. For this reason all-optical approaches are becoming increasingly important in lightwave communications. The goal of this proposal is to adapt sophisticated all-optical methods from the field of ultrafast optics for use in lightwave systems, with a strong emphasis on nonlinear optical measurement technologies. A fundamental research challenge necessary to attain this goal involves the pursuit of orders of magnitude improvement in nonlinear optical sensitivity, which is necessary for compatibility with the low power levels and very high repetition rates typical of practical lightwave systems. In order to substantially advance the state-of-the-art in ultrafast nonlinear optical measurement technology, the PI has formed a synergistic team comprising the Weiner group at Purdue University and the Fejer group at Stanford University. The Weiner group is a world leader in powerful signal processing approaches based on relationships between the time, frequency, and spatial degrees of freedom in ultrafast lightwave signals. The Fejer group is a world leader in second-order nonlinear optical materials and devices, including nonlinear optical waveguides that provide orders of magnitude increases in efficiency and engineerable quasi-phase-matched structures that open up rich new possibilities for photonic signal processing and measurement. As a result their team proposes to realize orders of magnitude improvement in the sensitivity of ultrafast optical measurement techniques, while for the first time engineering the nonlinear structure to permit optimization of the trade-offs between efficiency, bandwidth, and temporal resolution. Broader impactThe PI's work, aimed at providing new measurement technologies enabling further advances in ultrafast lightwave communications, has the potential for significant societal benefit, by acting to support the information technology revolution that fuels so much of our economy. To catalyze rapid transfer of our results to industry, the PI envisions collaborations with partners such as Agilent Laboratories, a leading developer of test and measurement instrumentation. The research also has the potential for broader impact beyond optical communications, e.g., by establishing approaches providing orders of magnitude sensitivity enhancements for measurement of the highly structured femtosecond optical signals that are now in broad use within ultrafast optical science research. This research project should furnish excellent opportunities for broad student training in areas of cutting-edge technology, while providing teaming opportunities that will enrich the students' educational experience.

0401515 Weiner超快光学领域在过去的10到15年里以一种真正革命性的方式取得了进展。 现在有几个研究小组正在产生持续时间只有几飞秒的可见光和近红外脉冲，相当于几个光学周期;并且已经开发出适用于这种极短时间尺度的波形测量和处理的复杂全光学方法。 与此同时，光波通信领域也取得了革命性的进展。 然而，将电子设备的速度大大提高到40 Gb/s的水平预计将非常具有挑战性。 这导致了所谓的“电子瓶颈”，因为光信号的固有速度可能比可用的电子设备快得多。 由于这个原因，全光学方法在光波通信中变得越来越重要。 该提案的目标是将超快光学领域的复杂全光学方法应用于光波系统，重点是非线性光学测量技术。 实现这一目标所必需的基础研究挑战涉及追求非线性光学灵敏度的数量级改进，这对于与实际光波系统的典型的低功率水平和非常高的重复率的兼容性是必要的。 为了实质性地推进超快非线性光学测量技术的最新发展，PI组建了一个协同团队，包括普渡大学的Weiner小组和斯坦福大学的费耶尔小组。 Weiner集团是基于超快光波信号中时间、频率和空间自由度之间关系的强大信号处理方法的全球领导者。 费耶尔集团是二阶非线性光学材料和器件领域的全球领导者，包括非线性光波导，可提供数量级的效率提高和可工程化的准相位匹配结构，为光子信号处理和测量开辟了丰富的新可能性。 因此，他们的团队建议实现超快光学测量技术灵敏度的数量级改进，同时首次设计非线性结构，以优化效率，带宽和时间分辨率之间的权衡。 更广泛的影响PI的工作，旨在提供新的测量技术，使超快光波通信的进一步发展，具有显着的社会效益的潜力，通过采取行动，以支持信息技术革命，燃料这么多我们的经济。 为了促进我们的成果快速转移到行业，PI设想与合作伙伴，如安捷伦实验室，测试和测量仪器的领先开发商合作。 该研究还具有超越光通信的更广泛影响的潜力，例如，通过建立为高度结构化的飞秒光信号的测量提供数量级灵敏度增强的方法，该高度结构化的飞秒光信号现在在超快光学科学研究中广泛使用。 这个研究项目应该提供广泛的学生培训在尖端技术领域的绝佳机会，同时提供团队合作的机会，将丰富学生的教育经验。