Femtosecond laser structuring technology

光子元件技术目前代表了从生物医学传感到先进激光制造等多个行业的高端应用创新的强大载体。在过去的十年中，电介质材料的超快激光加工已经成为一种主导的研究技术，它使复杂的光子功能工程具有无与伦比的精度，如大块玻璃样品和光纤等普通透明材料。许多传统上使用紫外光加工的光子元件，如光纤和体积布拉格光栅，现在可以使用利用非线性多光子吸收过程的红外飞秒激光器制造出性能更好的光子元件。为了使这种超快激光加工技术达到工业水平，我们需要解决剩余的科学和技术挑战，例如减轻超快激光加工造成的光致损耗。在光纤Bragg光栅行业的世界领先企业Teraxion的大力支持下，拟议的CRD项目旨在进一步发展申请人在过去十年中实现的透明材料的超快激光加工，从而能够生产高性能光子元件。通过强有力的互动联合开发计划，将利用两个组织的研发能力，拟议的CRD项目将追求将飞秒激光结构光子组件推向市场所需的最重要技术开发。

Photonic component technology currently represents a strong vector for innovation in several high-endapplications in various industries, ranging from biomedical sensing to advanced laser manufacturing. In thepast decade, ultrafast laser processing of dielectric materials has become a dominant research technique thathas enabled the engineering of complex photonic functions with unmatched precision in common transparentmaterials like bulk glass samples and optical fibers. Many photonic components traditionally processed usingultraviolet light, such as fiber and volume Bragg gratings, can now be fabricated with much betterperformances by using infrared femtosecond lasers that take advantage of the nonlinear multiphoton absorptionprocess. In order to bring such ultrafast laser processing technology to an industrial level, we need to addressthe remaining scientific and technological challenges, for example mitigating the photoinduced losses resultingfrom ultrafast laser processing. Well supported by Teraxion, a world-leading player in the fiber Bragg gratingindustry, the proposed CRD project aims at further developing the ultrafast laser processing of transparentmaterials achieved by the applicant during the past ten years to be able to produce high performances photoniccomponents. Through a strongly interactive joint development initiative that will leverage the R&D capabilitiesof both organizations, the proposed CRD project will pursue the paramount technology development requiredto promote femtosecond laser structured photonic components to the market.