光学学报, 2014, 34 (7): 0731001, 网络出版: 2014-06-13   

紫外日盲通信系统中滤光膜的研究

Research of Ultraviolet Filter Film in Solar Blind Communication System
作者单位
长春理工大学光电工程学院, 吉林 长春 130022
摘要
紫外日盲通信凭借其优良的光学特性被越来越多地应用在光学系统中。紫外日盲通信系统与常规通信系统相比,具有结构简单、虚警率低、灵敏度高、隐蔽性强等独特优势。为了满足紫外通信系统的技术要求,提高信号采集效率,需要一种日盲光谱滤光膜来保证其稳定工作。根据薄膜理论,选择合适的紫外薄膜材料,在设计方面通过对独立敏感度和误差分布的分析与修正,降低了膜层的敏感度,同时在薄膜制备过程中通过逆向测试分析法,解决了由于设备与控制误差导致的膜厚问题。制备的紫外滤光膜在240~280 nm透射率为86%,290~360 nm波段截止度小于0.2%,并通过了国军标的相关环境测试。
Abstract
Ultraviolet solar blind communication with its excellent optical characteristics has been more and more applied in the optical system. Compared with the conventional communication systems, the advantages of ultraviolet solar band communication are simple structure, low false alarm rate, high sensitivity and strong concealment, etc. In order to satisfy the requirement of ultraviolet communication system and to improve the efficiency of signal acquisition, a high-performance ultraviolet filter film is required to ensure the system′s steadiness. Appropriate ultraviolet film material are selected according to the thin film theory. In the aspect of film design, the independent sensitivity and errors distribution are analyzed and amended to reduce the sensitivity of the film. In the meantime, the reverse test analysis is used to solve the problem of film thickness which is due to the equipment error and control error. Eventually, the average transmittance of the film is 86% at the band of 240~280 nm and the rejection ratio is less than 0.2% at the band of 290~360 nm. The film has passed the relevant environmental tests of national military standard.

付秀华, 寇洋, 刘冬梅, 张静, 朱浩. 紫外日盲通信系统中滤光膜的研究[J]. 光学学报, 2014, 34(7): 0731001. Fu Xiuhua, Kou Yang, Liu Dongmei, Zhang Jing, Zhu Hao. Research of Ultraviolet Filter Film in Solar Blind Communication System[J]. Acta Optica Sinica, 2014, 34(7): 0731001.

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