LIMONCELLO: Laser wrItten millimeter long nanocrystalline lanthanide waveguide lasers with rare earth doping

光子学科学和技术还没有发展起来，以满足在基础科学、激光与物质相互作用、医学和通信等广泛应用中的不断需求。RE3+掺杂纳米晶材料在可加工玻璃中的应用前景广阔。这项建议针对蒙特利尔理工学院(PM)与拉瓦尔大学合作的掺稀土氟氧化物玻璃，用于高效激光辅助冷却、大功率激光/放大系统和其他光学集成电路应用。我们对材料的更好的理解和提纯导致了纳米晶稀土掺杂的氟氧化物玻璃的制备，最近我们已经证明了在激光泵浦下，这些玻璃的净加热接近于零。这项提议将使我们能够利用由PI首创的飞秒激光写入最低损耗波导的技术，以及在拉瓦尔大学的低声子能量玻璃中引入纳米晶镧系元素的技术，用于紧凑和环保的激光光源，这是现实应用所需的，通常需要振动不敏感的光腔，用于各种便携式、高功率家电。因此，该项目的最终目标是将高纯、低成本、可模塑的纳米晶(NC)掺杂稀土玻璃用于高效激光泵浦制冷器，并利用飞秒激光直写(FLDW)技术制造低损耗波导，以开发与布拉格光栅相结合的成本效益高的微型集成电路。

Photonics science and technology has yet to evolve to meet the incessant demands in a wide range of applications such as in basic sciences, laser-matter interaction, medicine, and communications. RE3+-doped nanocrystalline materials have recently shown great promise for incorporation into robust processable glasses. This proposal targets oxyfluoride glasses doped with RE3+ ions at Polytechnique Montreal (PM) in partnership with Laval University, for high efficiency laser assisted cooling, high power laser/amplifier systems and other optical integrated circuit applications. Our better understanding and purification of materials has led to the fabrication of robust oxy-fluoride glasses with nanocrystalline rare earth doping, and recently we have demonnstrated near zero net heating in these glasses when pumped with lasers. This proposal will allow us to exploit the technology of femtosecond laser writing of the lowest loss waveguides pioneered by the PIs, and the nano-crystalline lanthanides incorporated in low phonon energy glass at Laval University for compact and environmentally robust laser sources that are required for real-life applications, often necessitating vibration insensitive optical cavities, for a variety of portable, high power appliances. Hence, the ultimate aims of the proposed project is to allow the use of the highly pure, low-cost, mouldable nano crystalline (NC's)-doped lanthanide glasses with RE3+-doping for high efficiency laser pumped cryo-coolers and the fabrication of low loss waveguides by femtosecond laser direct writing (FLDW) technique, for the development of cost-effective and miniature integrated circuits in combination with Bragg gratings.**