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    • 10. 发明申请
    • OPTICAL SWITCH, OPTICAL SWITCH CONTROL METHOD AND COMMUNICATIION SYSTEM
    • 光开关,光开关控制方法及通讯系统
    • US20090323149A1
    • 2009-12-31
    • US12309904
    • 2007-08-20
    • Masato MizukamiJohji YamaguchiNaru NemotoKunihiko Sasakura
    • Masato MizukamiJohji YamaguchiNaru NemotoKunihiko Sasakura
    • G02B26/08
    • G02B26/0841G02B6/2931G02B6/29313G02B6/3512G02B6/356G02B6/3588Y10S359/90
    • When a light intensity upon a perturbation is detected, an error calculation/correction unit (85) in a control unit (8) corrects and updates the above-described initial manipulated variables based on perturbation manipulated variables and manipulated variables, i.e., operation manipulated variables to obtain the maximum light intensity from the light intensity value at each perturbation manipulated variable, thereby adjusting the tilt angle of a mirror. More specifically, assuming that the time series data of an acquired output light intensity can be approximated to a cosine function, the error calculation/correction unit (85) calculates a phase difference θ between the cosine function and a sine or cosine function used to set x- and y-axis perturbation patterns for a circular trajectory perturbation. Manipulated variables at coordinates defined by the phase difference θ and polar coordinates of a radius voltage to perturb the mirror are calculated. Voltage values at coordinates defined by a function for setting the driving voltages of the mirror (230) are calculated and set as the driving voltages for one output port.
    • 当检测到扰动时的光强度时,控制单元(8)中的误差计算/校正单元(85)基于扰动操作变量和操作变量(即操作操作变量)来校正和更新上述初始操纵变量 以从每个扰动操纵变量处的光强度值获得最大光强度,从而调整反射镜的倾斜角度。 更具体地,假设所获取的输出光强度的时间序列数据可以近似为余弦函数,则误差计算/校正单元(85)计算余弦函数和用于设置的正弦或余弦函数之间的相位差θ 用于圆轨迹扰动的x轴和y轴扰动模式。 计算由相位差θ定义的坐标处的操纵变量和扰动反射镜的半径电压的极坐标。 计算由用于设置反射镜(230)的驱动电压的功能所确定的坐标处的电压值,并将其设置为一个输出端口的驱动电压。