SBIR Phase I: Development of a Room Temperature, Mid-infrared Thin Disk Laser

SBIR 第一阶段：室温中红外薄盘激光器的开发

• 批准号: 0318677
• 负责人: Susan Kutcher
• 金额: $ 10万
• 依托单位: BRIMROSE CORPORATION OF AMERICA
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-07-01 至 2003-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0318677&HistoricalAwards=false
• 关键词: SBIR; Phase; Development; Room; Temperature

This Small Business Innovation Research Phase I project involves the development of material that is suitable for the fabrication of a tunable, room temperature, mid-infrared thin disk laser. Novel, tunable room temperature solid-state laser material using transition metal doped Cd1-xMnxTe has recently been developed. Lasing up to 3.01 microns with a tuning range of 2.1 to 3.1 microns, the widest ever reported was demonstrated; and quasi-cw lasing in Cd0.55Mn0.45Te:Cr was demonstrated. Calculations of the gain profile indicate that the material is capable of operation up to 3.4 micron. However, problems related to the inhomogeneity of the dopant concentration and the low thermal conductivity of the material have hindered the development of a laser device. In this work, problems related to the thermal conductivity will be alleviated by thinning the CdMnTe crystal to approximately 250 micron prior to doping, the homogeneity of the chromium will be improved through a systematic study of the doping process aided by theoretical and computational modeling. Applications of this technology include infrared countermeasures, mid-IR spectroscopy, active/ hyperspectral imaging, mid-IR room temperature power limiting, atmospheric measurements, optical communications, remote sensing, medicine, and environmental studies. Numerous civilian industries such as the aviation, communications, meteorological and the chemical/petroleum industries are potential customers for this technology.

这个小企业创新研究第一阶段项目涉及材料的开发，适用于可调谐，室温，中红外薄盘激光器的制造。最近发展了一种新型的可调谐室温固体激光器材料，该材料使用过渡金属掺杂的Cd_（1-x）Mn_xTe。激光高达3.01微米的调谐范围为2.1至3.1微米，有史以来最宽的报道被证明;和准连续激光Cd0.55Mn0.45Te：Cr被证明。增益分布的计算表明，该材料能够操作高达3.4微米。然而，与掺杂剂浓度的不均匀性和材料的低热导率相关的问题阻碍了激光器件的发展。在这项工作中，与导热性相关的问题将通过在掺杂之前将CdMnTe晶体减薄至约250微米来缓解，通过理论和计算建模辅助的掺杂过程的系统研究来改善铬的均匀性。该技术的应用包括红外对抗、中红外光谱、主动/高光谱成像、中红外室温功率限制、大气测量、光通信、遥感、医学和环境研究。许多民用工业，如航空、通信、气象和化学/石油工业都是这项技术的潜在客户。