Frequency-Agile source of remote optical (UV-THz) emission (market assessment)

远程光学 (UV-THz) 发射的频率捷变源（市场评估）

• 批准号: 516236-2017
• 负责人: Kieffer, JeanClaude
• 金额: $ 0.88万
• 依托单位: Institut national de la recherche scientifique
• 依托单位国家: 加拿大
• 项目类别: Idea to Innovation
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=618896
• 关键词: Frequency; Agile; source; remote; optical

The present proposal concerns a market assessment related to the development of a source of frequency agileradiation (from UV to THz) obtained by using multi-color filamentation in an in-line setup and by spectrallyshaping a femtosecond laser beam. High power frequency agile sources of optical radiation (from the visible tothe THz) are not technologically mature due to complexity and cost. The current approach in non-linear opticalinteraction and generation of radiation at some controlled distance is based on splitting a laser beam in severalbeams, changing the frequency of some of these beams and recombining the various beams. Precise alignment,system complexity and high stability of the multi-beam system are critical and difficult to control, which limitsthe practical use in a real environment. We developed a novel approach which circumvents the currentlimitations offering a way to spatially and temporally overlap two-color pulses or multi color pulses in acompletely collinear geometry for the generation at long distance of tunable UV, VIS, IR and/or THz sourcevia nonlinear optical interaction or photocurrent generation processes. The system developed and tested allowsan easy generation of frequency-agile radiation through programmable control of the laser spectral amplitudeand phase. The optical source can be generated on a range of distances (100m - km) from a single laser beammodulated into collinear multi-pulses of different wavelengths, with a controlled temporal delay between thepulses, which are combined at a controlled distance in a multiple-color filament. The system ensures acomplete insensibility to alignments, vibrations and turbulences on long distances propagation particularly inair. The number of optical components in the present device is reduced offering a robust and compact way togenerate remote radiation with perfectly controlled parameters for remote sensing or spectroscopy. The stableand programmable generation of tunable Infra-red emission in the range between 2µm and 12µm and THzradiation in the 2THz to 6THz range has been demonstrated at long distances.

本提案涉及与通过在串联设置中使用多色丝和频谱塑造飞秒激光束相关的频率安装来源（从紫外线到THZ）的开发有关的市场评估。光辐射的高功率敏捷源（从可见到THZ）在技术上由于复杂性和成本而成熟。在某个受控距离下非线性光学相互作用和辐射产生的当前方法是基于在几光束中拆分激光束，改变了这些梁的频率并重新组合各种梁。多光束系统的精确对齐，系统复杂性和高稳定性至关重要且难以控制，这限制了在真实环境中的实际使用。我们开发了一种新的方法，该方法绕过当前的局限性，从而在适当的共线几何形状中以空间和临时重叠的两种颜色脉冲或多色脉冲重叠，以长距离生成可调紫外线，VIS，IR和/或THZ源Via sourcevia sourcevia norlinear nonelear性相互作用或光电流产生。该系统通过激光光谱放大器和相位可编程控制，可以轻松地生成频率辐射。光源可以在从不同波长的共线多脉冲中从单个激光器进行的距离（100m-km）上产生，并在脉冲之间有受控的临时延迟，这些脉冲在多色丝状中以受控的距离组合。该系统可确保对长距离传播的长距离传播的对齐，振动和湍流的不良性。本设备中的光学组件数量减少，可提供可靠，紧凑的方式，可切换远程辐射，并具有完美控制的参数，用于遥感或光谱。长距离已证明，在2µm至12µm之间的稳定且可编程的可调式红外发射以及2THz至6THz范围内的Thzradiation的稳定生成。