Spectral Line-by-Line Pulse Shaping

频谱逐线脉冲整形

• 批准号: 0601692
• 负责人: Andrew Weiner
• 金额: $ 24万
• 依托单位: Purdue University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-06-15 至 2010-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0601692&HistoricalAwards=false
• 关键词: Spectral; Line; Pulse; Shaping

Spectral Line-by-Line Pulse ShapingAndrew Weiner, Purdue University0601692Intellectual Merit: Mode-locked lasers generate periodic trains of ultrashort pulses that are characterized in the frequency domain by an evenly spaced series of discrete spectral lines. Recently, the stabilization of such optical frequency combs has led to a direct and precise connection between frequencies spanning radio-frequency to optical and to enormous progress in precision optical frequency synthesis and metrology. In parallel, pulse shaping techniques that exploit frequency domain manipulation of optical spectral components for synthesis of user-specified ultrashort pulsed fields have been developed and widely adopted. Until now frequency stabilization of mode-locked lasers and frequency domain manipulation and shaping of such lasers have been considered separately. Therefore, a new research program is planned in which high resolution pulse shapers resolve and control individual spectral lines. The envisioned research includes investigation of pulse shaping in the line-by-line regime, with an emphasis on new phenomena arising from line-by-line manipulation; demonstration of waveform characterization methods appropriate for line-by-line pulse shaping; development of novel pulse shaper geometries capable of very high resolution (GHz range) while scaling to manipulation of thousands of lines; and investigation of comb sources providing increased numbers of spectral lines while maintaining good optical frequency stability in a parameter range suitable for applications in optical telecommunications.Broader Impacts: The planned research on manipulation of individual spectral lines is expected to lead to a fundamentally new regime in ultrafast optics in which the attributes and advantages of pulse shaping and of stabilized frequency combs can be simultaneously realized and exploited for the first time. Both optical pulse shaping and femtosecond frequency combs technologies have individually had tremendous impact. Combining them should result in new opportunities in areas such as secure optical communications, ultrawideband electrical waveform generation for radar and wireless communications, coherent control of chemical reactions and quantum mechanical motions, single cycle pulse generation, and spectroscopy. Because these technologies are broadly enabling, it is likely that additional applications as yet unanticipated will also emerge. This project should also provide rich opportunities for broad student training in areas of cutting-edge technology, within the atmosphere of a leading research group whose excellence in graduate student training is evidenced through a strong record of student awards. Two Ph.D. students are included in the proposal budget. These students will have the opportunity to design, implement, and test novel optical pulse shaping and frequency comb modules and perform experiments integrating these advanced technologies, as well as report their findings and interact with other researchers at appropriate conference venues.

逐线光谱脉冲整形Andrew Weiner，普渡大学0601692智力优点：锁模激光器产生周期性的超短脉冲序列，其在频域中的特征是一系列均匀间隔的离散谱线。 最近，这种光学频率梳的稳定性导致了射频频率与光学频率之间的直接而精确的连接，并在精密光学频率合成和计量学方面取得了巨大进步。 与此同时，利用光谱分量的频域操纵来合成用户指定的超短脉冲场的脉冲整形技术已经得到开发和广泛采用。 到目前为止，锁模激光器的频率稳定以及此类激光器的频域操纵和整形一直被单独考虑。 因此，计划开展一项新的研究计划，其中高分辨率脉冲整形器解析并控制单个谱线。 设想的研究包括对逐行状态下的脉冲整形的研究，重点是逐行操作产生的新现象；演示适用于逐行脉冲整形的波形表征方法；开发新颖的脉冲整形器几何结构，能够实现非常高分辨率（GHz 范围），同时可扩展至数千条线的操作；以及对梳状源的研究，提供更多的谱线，同时在适合光通信应用的参数范围内保持良好的光学频率稳定性。更广泛的影响：计划中的对单个谱线操纵的研究预计将导致一个全新的领域超快光学器件首次可以同时实现和利用脉冲整形和稳定频率梳的属性和优点。 光脉冲整形和飞秒频率梳技术都产生了巨大的影响。 将它们结合起来应该会在安全光通信、雷达和无线通信的超宽带电波形生成、化学反应和量子力学运动的相干控制、单周期脉冲生成和光谱学等领域带来新的机遇。 由于这些技术具有广泛的应用前景，因此很可能还会出现尚未预料到的其他应用。 该项目还应在领先的研究小组的氛围中为尖端技术领域的广泛学生培训提供丰富的机会，该研究小组在研究生培训方面的卓越表现通过学生获奖记录来证明。 两名博士学生已包含在提案预算中。 这些学生将有机会设计、实现和测试新型光脉冲整形和频率梳模块，并进行集成这些先进技术的实验，以及报告他们的发现并在适当的会议场所与其他研究人员互动。