SBIR Phase II: Tunable, Narrowband, Long Wave Infrared LightSource

*** 95-28553 INRAD, Inc.这个小企业创新研究（SBIR）二期项目研究的是波长在3-12微米区域的窄带、宽可调红外光源。该光谱区域具有丰富的分子特征，但在该区域没有既强大又可广泛调谐的商用激光光源。第一阶段研制了基于二磷化锌锗的窄带、宽可调谐光学参量振荡器（OPO）。第二阶段将构建一个更高功率、更窄带宽、更广泛可调的原型源。将在涂层、从OPO中提取能量以及光参量放大器（OPA）的放大方面寻求改进。本文将研究实际的OPO/OPA系统对泵浦激光器的要求。将构建一个原型系统，在低发散光束中产生每脉冲几毫焦耳的可调谐长波红外光，具有窄光谱带宽。3-12微米范围内的可调谐激光辐射将在使用移动激光雷达系统的环境研究和大气遥感的分子物种研究中发挥重要作用

*** 95-28553 INRAD, Inc. This Small Business Innovation Research (SBIR) Phase II project addresses a narrowband, widely tunable infrared light source of wavelengths in the 3-12 micron region. This spectral region is rich in molecular signatures, but there are no commercial laser light sources that are both powerful and broadly tunable in the region. Phase I produced a narrowband, widely tunable optical parametric oscillator (OPO) based on zinc germanium diphosphide. Phase II will construct a higher power, narrower bandwidth, more widely tunable prototype source. Improvement will be sought in coatings, the extraction of energy from the OPO, and amplification in an optical parametric amplifier (OPA). Pump laser requirements will be studied for a practical OPO/OPA system. A prototype system will be constructed that generates a few millijoules per pulse of tunable, long-wavelength infrared light in a low divergence beam with a narrow spectral bandwidth. Tunable laser radiation in the 3-12 micron range will be important in studies of molecular species in environmental research and atmospheric remote sensing that use mobile LIDAR systems.***