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    • 2. 发明公开
    • Optical device
    • 光学器件
    • EP2413170A1
    • 2012-02-01
    • EP10007829.4
    • 2010-07-28
    • U2t Photonics Ag
    • Matiss, Andreas, Dr.Trommer, Dirk
    • G02B6/125H04Q11/00
    • G02B6/125H04Q11/0005H04Q2011/0049H04Q2011/0052
    • An embodiment of the invention relates to an optical device (10) comprising a coupler (20) having coupler inputs (I1, I2) and coupler outputs (O1-O4), and a connection network (30), wherein said connection network comprises connecting waveguides (41-44) which connect said coupler outputs with outputs of the connection network (O1'-O4'), and wherein at least one connecting waveguide of the connection network crosses at least one other connecting waveguide of the connection network. At least one connecting waveguide (42-44), which crosses other connecting waveguides less often than the connecting waveguide (41) with the maximum number of crossings with other connecting waveguides, is attenuated by an optical attenuation element (81-84, 91-94).
    • 本发明的实施例涉及包括具有耦合器输入(I1,I2)和耦合器输出(O1-O4)的耦合器(20)和连接网络(30)的光学设备(10),其中所述连接网络包括连接 波导(41-44),其将所述耦合器输出与所述连接网络(O1'-O4')的输出相连接,并且其中所述连接网络的至少一个连接波导与所述连接网络的至少一个其他连接波导相交。 至少一个连接波导(42-44)通过光学衰减元件(81-84,91-44)衰减,该连接波导(42-44)与连接波导(41)相比穿过其它连接波导的次数少于其它连接波导的最大交叉次数, 94)。