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声光可调滤光器（ＡＯＴＦ）具有独特的光波长调谐功能，可望用于光通信的波分复用（ＷＤＭ）技术。而共束声光滤光器（ＣＢ－ＡＯＴＦ）兼顾了共线和非共线ＡＯＴＦ的优点。给出ＣＢ－ＡＯＴＦ的工作原理和设计方法。获得了在２０ｍＷ下９８％的衍射效率，旁瓣抑制优于３３ｄＢ和线宽０．８ｎｍ的结果。
Acousto-optic tunable filter (AOTF) has a unique optical wavelength tuning function that is expected for wavelength division multiplexing (WDM) for optical communications. The co-beam acoustic filter (CB-AOTF) takes into account the advantages of both collinear and non-collinear AOTF. Give CB-AOTF working principle and design method. A diffraction efficiency of 98% at 20 mW, a sidelobe suppression of better than 33 dB and a line width of 0.8 nm were obtained.