STTR Phase II: High Performance Single Frequency Lasers

这项小型企业技术转移计划（STTR）第二阶段项目将使新一代单频半导体激光器能够应用于显示器、精密仪器和国防。在第一阶段项目中，该团队开发了业界领先的第一代激光器，功率高达200兆瓦。来自各种应用的初始客户反馈都集中在对连续波工作条件下更高功率和任意调制下频谱稳定性的需求上。进一步的反馈指出，需要以具有成本效益的方式解决这些要求，以确保有竞争力的解决方案。该提案概述了材料工程和单片器件特性的创新组合，以解决这些问题。该团队建议制造并交付用于客户评估的单频激光器(1)在连续波条件下工作500mw，或(2)在各种占空比下脉冲宽度低于100nsec时满足规定的光谱稳定性水平。如果成功，STTR二期项目将使新一代低成本单频半导体激光器能够应用于显示器，精密仪器和国防。这项工作具有很强的教育成分，新大设备和制造课程的学生接触到并受益于拟议的研究。在这个STTR上开发的设备、软件和概念将教育新大光子学网站的学生和访客，通过医疗和科学应用的激光仪器影响世界经济，提供激光显示器，并有人道主义贡献，因为这些激光器用于磁力计，在世界上饱受战争蹂躏的地区寻找地雷和简易爆炸装置。

This Small Business Technology Transfer Program (STTR) Phase II project will enable a new generation of single-frequency semiconductor lasers to enable applications in displays, precision instruments and defense. Under the Phase I project the team developed industry-leading first generation lasers up to 200 mW. The initial customer feedback from a variety of applications has converged around the need for higher power under CW operating conditions and spectral stability under arbitrary modulation. Further feedback points to the need to address these requirements in a cost effective manner to ensure a competitive solution. The proposal outlines an innovative combination of materials engineering and monolithic device features to address these issues. The team proposes to fabricate and deliver for customer evaluation single frequency lasers operating (1) 500 mW under CW conditions or (2) meeting specified levels of spectral stability at pulse widths below 100 nsec with various duty cycles. If successful this STTR Phase II project will enable a new generation of low cost single-frequency semiconductor lasers to enable applications in displays, precision instruments and defense. This work has a strong educational component with students in device and fabrication classes at SMU been exposed to and benefit from the proposed research. The devices, software and concepts developed on this STTR will educate students and visitors to the SMU photonics website, impact the world economy with laser instrumentation for medical and scientific applications, provide laser displays, and have a humanitarian contribution since these lasers are used in magnetometers to find mines and improvised explosive devices in war torn regions of the world.