Development of widely tunable mid-IR coherent light source based on a synchronized dual color picosecond laser system

我们的合作研究开发（CRD）项目的目标是开发一个光子平台，使中红外相干辐射与可调中心波长的有效生成。该项目将Genia Photonics在同步双色皮秒激光系统方面的专业知识与两位非线性光学系统专家的专业知识相结合。 具体来说，这个CRD项目的重点是确定最佳的方法，以达到最高的转换效率，在中红外光谱区使用兆赫双色皮秒激光系统。这使得我们的工业合作伙伴能够将业务扩展到需要中红外辐射的应用领域，这些应用领域为数众多（参见下一节）。因此，该CRD项目为Genia Photonics提供了一个独特的机会，可以开发新的激光平台并增加其产品供应。 更具体地，在该CRD项目的背景下，我们将开发（1）具有1 MHz重复率的高平均功率高峰功率1.064微米激光器（>10 W，脉冲持续时间为20皮秒），（2）光纤集成光学参量振荡器，以提供中心波长可从1.33微米调谐到1.68微米的可调谐红外脉冲，以及（3）在时间和空间上联合收割机组合1.064微米和可调谐红外激光束，以产生2.9至5.3微米的有效可调谐中红外辐射。这对应于第一个大气窗口，它是透明的，对安全和国防应用非常重要。为了实现这个CRD项目，我们有一个由两名大学教授组成的团队，François Légaré和Nicolas Godbout，Genia Photonics研发团队的贡献，以及来自加拿大国防研究与发展部（DRDC）的弗朗西斯博士。DRDC是开发技术的潜在最终用户。

The goal of our Collaborative Research Development (CRD) project is to develop a photonic platform enabling the efficient generation of mid-infrared coherent radiation with a tunable central wavelength. The project harnesses the combined expertise of Genia Photonics in synchronized dual-color picosecond laser systems with that of two researchers expert in nonlinear optical systems. Specifically, this CRD project's focus is to determine the optimal approach to reach the highest conversion efficiency in the mid-infrared spectral region using a MHz dual-color picosecond laser system. This allows our industrial partner to extend its business in applications areas requiring mid-infrared radiation, which are numerous (see the next section). Thus, this CRD project represents a unique opportunity for Genia Photonics to develop a new laser platform and to increase their product offerings. More specifically, in the context of this CRD project, we will develop (1) a high average power high peak power 1.064 micron laser with 1 MHz repetition rate (>10 W with 20 picoseconds pulse duration), (2) a fiber integrated optical parametric oscillator to provide tunable infrared pulses with central wavelength tunable from 1.33 to 1.68 micron, and (3) to temporally and spatially combine the 1.064 micron and the tunable infrared laser beams to generate efficient tunable mid-infrared radiation from 2.9 to 5.3 microns. This corresponds to the first atmospheric window, which is transparent and of high interest for security and defence applications. In order to realize this CRD project, we have a team composed of two university professors, François Légaré and Nicolas Godbout, the contribution from Genia Photonics R&D team, and Dr. Francis Théberge from Defense Research and Development Canada (DRDC). The DRDC is a potential end user of the developed technology.