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公开(公告)号：EP1351541A3
公开(公告)日：2007-09-26
申请号：EP03251905.0
申请日：2003-03-26
IPC分类号： H04Q11/00 , G02B5/32 , G02F1/31 , G11B7/0065 , G11C13/04
CPC分类号： G02B5/32 , G02B6/3556 , G02B6/356 , G02F1/0338 , G11C13/042 , H04Q11/0005 , H04Q2011/0028 , H04Q2011/0035 , H04Q2011/0039
摘要： An optic switch for cross-connecting input light signals incoming from inlet fiber cables to outlet fiber cables is disclosed that makes use of a holographic filter (5) having a series of preformed different speckle patterns, each in the form of a hologram (H 1 , H 2 , ....). Associated with input light signals guided past respective inlet passages (4in) of a multimode waveguide (4), different speckle patterns are formed by applying different control voltages across respective electrode pairs (10, 10a) provided thereon. These speckle patterns past a single outlet passage (4out) of the multimode waveguide (4) into which the inlet passages (4in) converge are joined together and enter the holographic filter (5) in which an input light signal is selectively switched, addressed and cross-connected to an outlet waveguide (2) through a region thereof where a formed speckle pattern coincides with a preformed speckle pattern. The multi mode waveguides (4) is formed in, e. g., a LiNbO 3 photorefractive substrate (3).
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公开(公告)号：EP1351541A2
公开(公告)日：2003-10-08
申请号：EP03251905.0
申请日：2003-03-26
IPC分类号： H04Q11/00
CPC分类号： G02B5/32 , G02B6/3556 , G02B6/356 , G02F1/0338 , G11C13/042 , H04Q11/0005 , H04Q2011/0028 , H04Q2011/0035 , H04Q2011/0039
摘要： An optic switch for cross-connecting input light signals incoming from inlet fiber cables to outlet fiber cables is disclosed that makes use of a holographic filter (5) having a series of preformed different speckle patterns, each in the form of a hologram (H 1 , H 2 , ....). Associated with input light signals guided past respective inlet passages (4in) of a multimode waveguide (4), different speckle patterns are formed by applying different control voltages across respective electrode pairs (10, 10a) provided thereon. These speckle patterns past a single outlet passage (4out) of the multimode waveguide (4) into which the inlet passages (4in) converge are joined together and enter the holographic filter (5) in which an input light signal is selectively switched, addressed and cross-connected to an outlet waveguide (2) through a region thereof where a formed speckle pattern coincides with a preformed speckle pattern. The multi mode waveguides (4) is formed in, e. g., a LiNbO 3 photorefractive substrate (3).
摘要翻译： 公开了一种用于交叉连接从入口光缆到出口光缆的输入光信号的光开关，其利用具有一系列预制的不同散斑图案的全息滤光片（5），每个都具有全息图形式（H 1 ，H 2，...）。 与通过多模波导（4）的相应入口通道（4in）引导的输入光信号相关联，通过在其上提供的各个电极对（10,10a）上施加不同的控制电压来形成不同的散斑图案。 通过入口通道（4in）会聚在其中的多模波导（4）的单个出口通道（4out）上的这些斑点图案被连接在一起并进入全息滤光器（5），在该全息滤光器中输入光信号被选择性地切换，寻址， 通过其形成的斑点图案与预先形成的斑点图案重合的区域与出口波导（2）交叉连接。 多模波导（4）形成在，例如， 例如，LiNbO 3光折射基板（3）。
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