Optical sources for the 2-12 um spectral band of the mid-infrared

中红外 2-12 um 光谱带的光源

• 批准号: RGPIN-2017-05175
• 负责人: Rochette, Martin
• 金额: $ 2.7万
• 依托单位: McGill University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=663539
• 关键词: Optical; sources; 12; um; spectral

Mid-infrared sources are in demand for the identification and quantification of molecular species in gases, liquids and at the surface of solids, with applications for medical instrumentation, industrial processes, environment monitoring, and defence. Mid-infrared sources that are tunable, compact, robust, and with low power consumption would be key components within portable chemical sensors. In the past years, my research has successfully demonstrated the unique functionality of new designs of optical fiber sources emitting in the 1.5-2.0 um wavelength range such as optical parametric oscillators, wavelength converters, supercontinuum sources, and quantum communications sources. Chalcogenide glasses have been used for the fabrication of those sources because of their exceptionally high nonlinearity coefficient, enabling strong nonlinear effects to take place in a short waveguide and requiring low input power to operate. However, another important quality of chalcogenide glasses is their transparency in the wavelength range of 1.5-12.0 um, enabling the fabrication of optical sources emitting in the mid-infrared. In response to the high demand for mid-infrared optical sources and the strong potential of chalcogenide glasses in this wavelength range, within the next 5 years, my research program will target the development of mid-infrared optical sources that are broadly tunable, compact, robust, and with low power consumption.***The proposed project addresses a growing concern across Canada: developing monitoring and sensing tools for health services, environment, industry and defence. Photonics technologies in the mid-infrared are lagging behind near-infrared photonics (0.8-1.7 um) which benefited from exceptional market competition and activity in the telecommunication market. As a result, few sources are available in the wavelength range of 1.7 um and beyond. This project harnesses current photonics technology and a scientifically mature optical material, namely chalcogenide glass, to close important wavelength gaps in the market offerings. ***Highly qualified personnel will emerge from this project. The graduate students will be specialists in mid-infrared technologies, a topic of great importance and holding many challenges for years to come. Sixteen students and PDFs will benefit from this opportunity.***As an extension to the project, compact and portable chemical sensors would have a major impact for medical instrumentation (e.g. blood, plasma, saliva, or breath analysis), environment monitoring (e.g. air and water quality, pollutants monitoring), industrial process control (e.g. combustion processes, chemical reactions, exhaust monitoring), and defence (explosive hazard avoidance, personnel protection), just to name a few.

中红外光源用于气体、液体和固体表面的分子种类的识别和定量，应用于医疗仪器、工业过程、环境监测和国防。中红外光源具有可调、紧凑、坚固、低功耗等特点，将成为便携式化学传感器的关键部件。在过去的几年里，我的研究已经成功地展示了在1.5-2.0 um波长范围内发射的新设计光纤源的独特功能，如光参量振荡器、波长转换器、超连续谱源和量子通信源。硫系玻璃已被用于制造这些光源，因为它们具有极高的非线性系数，能够在短波导中发生强烈的非线性效应，并且需要低输入功率来操作。然而，硫系玻璃的另一个重要品质是其在1.5-12.0 um波长范围内的透明性，这使得制造中红外光源成为可能。针对中红外光源的高需求和硫系玻璃在该波长范围内的强大潜力，在未来5年内，我的研究计划将以开发宽可调、紧凑、坚固、低功耗的中红外光源为目标。***拟议的项目解决了加拿大各地日益关注的问题：为卫生服务、环境、工业和国防开发监测和传感工具。中红外光子学技术落后于近红外光子学（0.8-1.7 um），后者受益于特殊的市场竞争和电信市场的活动。因此，在1.7微米及以上的波长范围内，可用的光源很少。该项目利用当前的光子学技术和科学上成熟的光学材料，即硫系玻璃，来弥补市场上重要的波长差距。这个项目将培养出高素质的人才。研究生将成为中红外技术的专家，这是一个非常重要的话题，在未来几年将面临许多挑战。16名学生和pdf将从这次机会中受益。***作为该项目的延伸，紧凑和便携式化学传感器将对医疗仪器（例如血液，血浆，唾液或呼吸分析），环境监测（例如空气和水质，污染物监测），工业过程控制（例如燃烧过程，化学反应，排气监测）和国防（避免爆炸危险，人员保护）产生重大影响，仅举几例。