Quantum Limits to Timing Jitter in Femtosecond Lasers

飞秒激光器定时抖动的量子限制

• 批准号: 0900901
• 负责人: Franz Kaertner
• 金额: $ 40万
• 依托单位: Massachusetts Institute of Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-07-01 至 2012-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0900901&HistoricalAwards=false
• 关键词: Quantum; Limits; Timing; Jitter; Femtosecond

"This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5)."The objective of this proposal is to explore the fundamental limits for timing jitter in femtosecond (fs) lasers and develop a new technology for optical clock and microwave generation using compact diode-pumped Cr:Colquiriite lasers producing 10-100 fs pulses with ultralow timing jitter approaching the quantum limit. The proposed research builds upon our recent achievements in diode-pumped Cr:Colquiriite lasers and attosecond timing jitter detection and control. The proposed program consists of the following aims: 1. Modelling timing jitter in mode-locked lasers operating in the soliton pulse shaping regime. 2. Attosecond timing jitter characterization using balanced nonlinear optical cross correlation. 3. Extraction of low noise microwave signals and its characterization. 4. Development of Cr:Colquiriite lasers with repetition rates ranging from 100 MHz to 20 GHz. Intellectual Merit: The proposed research will make important contributions to the fundamental understanding of fs lasers and develop new methods to achieve ultrahigh stability microwave generation. These studies represent a critical step toward developing the next generation of ultrahigh speed signal processing techniques integrating optics and electronics. Broader Impact: Low-cost, high-power, compact and portable fs lasers are critical for many scientific and technological applications. The ultralow timing jitter which can be achieve using optical pulse trains from modelocked lasers makes them very attractive for applications such as fs precision timing distribution and synchronization of large scale accelerator facilities, low phase noise microwave generation, arbitrary waveform generation, high-speed, high-resolution optical sampling and analog-to-digital conversion.

“该奖项是根据2009年美国复苏和再投资法案（公法111-5）资助的。“这项提案的目的是探索飞秒（fs）激光器中定时抖动的基本限制，并开发一种新的光学时钟和微波产生技术，使用紧凑的二极管泵浦Cr：Colquiriite激光器产生10-100 fs脉冲，超低定时抖动接近量子极限。建议的研究建立在我们最近的成就，在二极管泵浦的铬：Colquiriite激光器和阿秒定时抖动检测和控制。该计划包括以下目标：1。在孤子脉冲成形状态下工作的锁模激光器中的定时抖动模型。2.利用平衡非线性光学互相关进行阿秒定时抖动表征。3.低噪声微波信号的提取及其表征。4.重复频率范围从100 MHz到20 GHz的Cr：Colquiriite激光器的开发。智力优势：该研究将对飞秒激光器的基本理解做出重要贡献，并开发新的方法来实现飞秒稳定的微波产生。这些研究代表了发展下一代集成光学和电子学的高速信号处理技术的关键一步。更广泛的影响：低成本、高功率、紧凑型和便携式飞秒激光器对于许多科学和技术应用至关重要。锁模激光器产生的光脉冲序列具有极低的时间抖动，在飞秒级高精度定时分配和大规模加速器同步、低相位噪声微波产生、任意波形产生、高速高分辨率光采样和模数转换等方面具有广泛的应用前景。