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对１．５μｍ波导型声光ＴＥ－ＴＭ模式转换光滤波器进行了研究。采用了可降低驱动功率的表面声波导结构。在１．５～１．６μｍ波段实现了可调滤光，通带宽度小于２ｎｍ，达到９７％以上转换率所需的射频驱动功率约８０ｍＷ（１９ｄＢｍ），器件总插入损耗约９ｄＢ。
A 1.5μm waveguide-type acousto-optic TE-TM mode-switched optical filter was studied. Surface acoustic waveguide structure with reduced drive power. In the 1.5 ~ 1.6μm band to achieve a tunable filter, the passband width of less than 2nm, to achieve 97% conversion rate required RF drive power of about 80mW (19dBm), the total insertion loss of the device is about 9dB.