中国激光, 2011, 38 (9): 0916001, 网络出版: 2011-08-05
近红外非共线声光可调谐滤波器设计理论的选取方法
Selection of Design Theory for Near Infrared Noncollinear Acousto-Optic Tunable Filter
光学器件 可调谐滤波器 数值分析 非共线 声光材料 optical devices tunable filter numerical analysis noncollinear acousto-optic material
摘要
根据对二氧化碲声光材料特性的不同考虑,存在几种不同的非共线声光可调谐滤波器(AOTF)设计理论。分析和比较了3种常用的非共线声光作用关系,研究结果表明,在近红外波段,P. A. Gass非共线声光作用关系能较准确地反映AOTF各参数之间的关系。选取P. A.Gass理论作为设计基础,针对0.8~2.0 μm非共线AOTF,阐述了入射光极角选择、色散补偿以及几何参数选择等优化设计方法;给出了0.8~2.0 μm非共线AOTF的设计参数,理论计算各项性能指标保持在较好水平,表明了P. A. Gass理论对该波段AOTF设计的适用性。对于推进近红外非共线AOTF的广泛应用具有指导意义。
Abstract
For the different consideration of the TeO2 acousto-optic material, there are several theories of the noncollinear acousto-optic tunable filter (AOTF) design. Three relationships of noncollinear acousto-optic interaction are analyzed in this paper. The results indicate that the P. A. Gass′ theory can describe the relationship of AOTF parameters, and the correlative equations are simple. On the basis of P. A. Gass′ theory, the optimization design method of the incident polar angle, the dispersion elimination and the geometry parameters are discussed. The theoretic index of the designed 0.8~2.0 μm noncollinear AOTF are better, indicating the applicability of P. A. Gass′ theory. The study is meaningful for pushing the widely applications of noncollinear AOTF.
张春光, 王号, 邱怡申. 近红外非共线声光可调谐滤波器设计理论的选取方法[J]. 中国激光, 2011, 38(9): 0916001. Zhang Chunguang, Wang Hao, Qiu Yishen. Selection of Design Theory for Near Infrared Noncollinear Acousto-Optic Tunable Filter[J]. Chinese Journal of Lasers, 2011, 38(9): 0916001.