| 用于探测器中红外绝对光谱响应度测量的激光源 |
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| 引用本文： | 赵坤,史学舜,刘长明,刘玉龙,陈海东,刘红博,陈坤峰,李立功.用于探测器中红外绝对光谱响应度测量的激光源[J].红外与激光工程,2016,45(7):705005-0705005(7). |
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| 作者姓名： | 赵坤 史学舜 刘长明 刘玉龙 陈海东 刘红博 陈坤峰 李立功 |
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| 作者单位： | 1.中国电子科技集团公司第四十一研究所,山东 青岛 266555; |
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| 基金项目： | 国家重点基础研究发展计划（863计划）;空间辐射测量基准源研制基金（2015AA123702）;国防技术基础项目（J3120BA001） |
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| 摘 要： | 为了实现中红外探测器绝对光谱响应度高准确度的测量，从理论和实验上研究了中红外波段激光的功率稳定性的提高和光束质量的优化方法。采用声光调制和反馈控制的方法，把中红外激光的功率稳定性提高到0.1%以内；根据高斯光束传输理论计算了所需空间滤波器的各项参数，设计了中红外空间滤波器，搭建了相应的实验装置，显著提高了中红外激光光束质量。为中红外绝对光谱响应度的高准确度测量提供了一个可靠的中红外波段激光光源。
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| 关 键 词： | 中红外 绝对光谱响应度 光束质量 功率稳定性 |
| 收稿时间： | 2015-11-05 |
Laser source used in accurate measurement of mid-infrared absolute spectral responsivity of detectors |
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| Affiliation: | 1.The 41 st Research Institute of CETC,Qingdao 266555,China;2.Science and Technology on Electronic Test & Measurement Laboratory,Qingdao 266555,China |
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| Abstract: | In order to measure the absolute spectral responsivity of mid-infrared detectors with high accuracy, the improvement of power stability and beam quality of mid-infrared laser was theoretically and experimentally demonstrated. The power stability of mid-infrared laser was improved to be better than 0.1% by using acousto-optic modulator and feedback-control electronics. Based on propogation properties of Gaussion beam, the parameters were calculated and experimental setup of spatial filter was constructed. Owing to the spatial filter, the beam quality of mid-infrared laser was improved. A stable and reliable laser source is provided for the measurement of absolute spectral responsivity of mid-infrared detectors. |
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