Innovative laser technologies for natural resource exploration

用于自然资源勘探的创新激光技术

• 批准号: 513662-2017
• 负责人: Kumarakrishnan, Anantharaman
• 金额: $ 1.46万
• 依托单位: York University
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 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=618900
• 关键词: Innovative; laser; technologies; natural; resource

Based on experience with stabilizing the frequencies of lasers over extended time intervals for experiments with ultracold atoms, we have developed a unique, low cost, vacuum-sealed, auto-locked external cavity diode laser system (ALDLS) (international patent filed). This laser system can be frequency stabilized with respect to an atomic spectral line without the need for human intervention. ALDLS modules consist of components from original equipment manufacturers (OEM) integrated with specially machined parts and powerful central processors. The thermally stabilized laser cavity can be evacuated within minutes and vacuum-sealed for several months making the system insensitive to environmental temperature and pressure fluctuations.ALDLS technology enables additional features such as power amplification and rapid amplitude modulation. These pulsed laser capabilities are not commercially available as a package despite widespread availability of constituent OEM components. Therefore pulsed lasers based on ALDLS technology can be significantly less expensive compared to existing alternatives.This university based research program will develop portable, high power, pulsed laser modules based on ALDLS technology that will be integrated into magnetometers for the detection of metal and mineral deposits.The industrial partnership with Geotech Ltd., a leader in the area of airborne surveys that map magnetic gradients for the detection of metal and mineral deposits, will impact the area of geophysical exploration, a target area for both federal and provincial governments in which Canada is a world leader. Commercial benefits include the creation of intellectual property, and high technology jobs. Societal benefits include specialized student training.

基于在超冷原子实验中长时间稳定激光频率的经验，我们开发了一种独特的、低成本的、真空密封的、自动锁定的外腔二极管激光系统（ALDLS）（已申请国际专利）。该激光系统可以在不需要人为干预的情况下相对于原子光谱线进行频率稳定。ALDLS模块由原始设备制造商（OEM）的组件组成，集成了特殊加工的部件和强大的中央处理器。热稳定激光腔可在几分钟内抽真空，真空密封数月，使系统对环境温度和压力波动不敏感。ALDLS技术可实现功率放大和快速幅度调制等附加功能。这些脉冲激光器功能不能作为一个包在市场上销售，尽管组成OEM组件的广泛可用性。因此，与现有的替代品相比，基于ALDLS技术的脉冲激光器可以显著降低成本。该大学的研究计划将开发基于ALDLS技术的便携式高功率脉冲激光模块，该模块将集成到磁力计中，用于检测金属和矿物矿床。加拿大是航空测量领域的领导者，该领域绘制了用于探测金属和矿藏的磁梯度图，将影响地球物理勘探领域，这是加拿大在世界上处于领先地位的联邦和省政府的目标领域。商业利益包括创造知识产权和高科技就业机会。社会福利包括专门的学生培训。