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公开(公告)号：EP0749591B1
公开(公告)日：1999-09-15
申请号：EP95908349.4
申请日：1995-02-17
CPC分类号： G02F1/335 , G02F1/0134 , G02F1/125 , G02F1/3131 , G02F2201/124
摘要： An optical device comprises an optical fibre directional coupler having at least a first optical fibre (10) optionally coupled at a coupling region (30) to a second optical fibre (20) such that light can propagate in the coupling region in at least two possible electromagnetic transmission modes; and means (40, 50, 60) for transferring energy between the modes by a spatially periodic perturbation (e.g. a flexural acoustic vibration or an electric field generated by a pair of interdigital electrodes) of at least a part of the coupling region.
摘要翻译： 一种光学装置包括光纤定向耦合器，所述光纤定向耦合器具有至少第一光纤（10），其可选地在耦合区域（30）处耦合到第二光纤（20），使得光可以在至少两种可能的方式中在耦合区域中传播 电磁传输模式; 和用于通过耦合区的至少一部分的空间周期性扰动（例如弯曲声波振动或由一对叉指电极产生的电场）在模式之间传递能量的装置（40,50,60）。
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公开(公告)号：EP0749591A1
公开(公告)日：1996-12-27
申请号：EP95908349.0
申请日：1995-02-17
CPC分类号： G02F1/335 , G02F1/0134 , G02F1/125 , G02F1/3131 , G02F2201/124
摘要： An optical device comprises an optical fibre directional coupler having at least a first optical fibre (10) optionally coupled at a coupling region (30) to a second optical fibre (20) such that light can propagate in the coupling region in at least two possible electromagnetic transmission modes; and means (40, 50, 60) for transferring energy between the modes by a spatially periodic perturbation (e.g. a flexural acoustic vibration or an electric field generated by a pair of interdigital electrodes) of at least a part of the coupling region.
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