OALib Journal期刊
铌酸锂声光偏转器宽带设计
Keywords: 声光效应 ,声光偏转器 ,铌酸锂 ,Dixon方程
Abstract:
给出了一种新的铌酸锂反常声光器件的宽带设计方法,通过旋转坐标系使铌酸锂晶体o光折射率曲面同e光折射率曲面剥离．在新坐标系下通过求解铌酸锂晶体反常声光衍射的Dixon方程,得到了不同旋转角度下入射角和衍射角随超声频率变化的关系曲线,确定了铌酸锂反常声光偏转器宽带工作模式的设计参数．该方法可以通过旋转角度来控制器件的中心频率,同时可以有效地扩大器件的工作带宽．
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