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公开(公告)号：EP1191808A2
公开(公告)日：2002-03-27
申请号：EP01307050.3
申请日：2001-08-20
发明人： Tai, Kuochou , Chang, Kok-Wai , Chen, Jyehong
IPC分类号： H04Q11/00
CPC分类号： H04Q11/0005 , H04Q2011/0016 , H04Q2011/0026 , H04Q2011/0075
摘要： Wavelength interleaving cross-connects pass a first optical signal including a first set of optical frequencies in a first direction and a second optical signal including a second set of optical frequencies in a second direction. In one embodiment, the first optical signal, when input to a first input/output (I/O) port, is routed from the first I/O port to a third I/O port. The first optical signal, when input to a fourth I/O port, is routed from the fourth port to a second I/O port. The second optical signal, when input to the second I/O port, is routed from the second I/O port to the third I/O port. The second optical signal, when input to the fourth I/O port, is routed from the fourth I/O port to the first I/O port. Thus, by coupling an optical device (e.g., amplifier, filter) between the third port and the fourth port, the optical device can be used for bidirectional communications thereby reducing the number of devices required for a bidirectional optical network architecture.
摘要翻译： 波长交错交叉连接在第一方向上通过包括第一组光频率的第一光信号和在第二方向上包括第二组光频率的第二光信号。 在一个实施例中，当输入到第一输入/输出（I / O）端口时，第一光信号从第一I / O端口路由到第三I / O端口。 当输入到第四个I / O端口时，第一个光信号从第四个端口路由到第二个I / O端口。 当输入到第二I / O端口时，第二个光信号从第二个I / O端口路由到第三个I / O端口。 当输入到第四个I / O端口时，第二个光信号从第四个I / O端口路由到第一个I / O端口。 因此，通过耦合第三端口和第四端口之间的光学装置（例如，放大器，滤波器），光学装置可以用于双向通信，从而减少双向光网络架构所需的装置数量。
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2.发明公开Isolated polarization beam splitter and combiner 审中-公开Isolierter Polarisationsstrahlteiler oder -kombinierer
公开(公告)号：EP1176451A3
公开(公告)日：2002-03-20
申请号：EP01306080.1
申请日：2001-07-13
发明人： Wills, Gonzalo , Wall, Pierre D. , Chang, Kok-Wai , Jin, Fahong , Wang, Xinglong
CPC分类号： G02B6/2773 , G02B6/272 , G02B6/2746 , G02B6/32 , G02B27/283
摘要： The present invention relates to an isolated polarization beam splitter or combiner, for joining light from different inputs into one common port, and for dividing a beam of light into orthogonal polarizations. In both modes of operation, the splitter/combiner provides isolation preventing transmission of light in a reverse direction. As a splitter, a beam of light is separated through a birefringent material into sub-beams of orthogonal polarization components, and each sub-beam is passed through a non-reciprocal polarization rotator to rotate the polarization so that a reflected beam, or other counter-transmitted light cannot return on the same path through the birefringent material to the source. As a combiner, two separate beams of light are launched with known orthogonal polarizations into a first birefringent material, passed through a non-reciprocal polarization rotator and then combined as orthogonal polarizations into a single output port. Advantageously, by providing the splitting or combining function in a same isolating device, insertion losses are reduced and the device is smaller and more cost effective. As a further advantage, a polarization beam splitter/combiner is provided in which the optical path length for the two separated orthogonal polarizations traveling through a birefringent crystal is equal, while still permitting the economical use of birefringent crystals with an uncollimated beam of light.
摘要翻译： 本发明涉及一种用于将来自不同输入端的光连接到一个公共端口中并用于将光束分成正交偏振的隔离偏振分束器或组合器。 在这两种工作模式下，分离器/组合器提供隔离，防止光沿相反方向传播。 作为分光器，光束通过双折射材料分离成正交偏振分量的子光束，并且每个子光束通过非可逆偏振旋转器以旋转偏振，使得反射光束或其他反射器 发射光不能在通过双折射材料到源的相同路径上返回。 作为组合器，通过已知的正交偏振将两个单独的光束发射到第一双折射材料中，通过非倒数偏振旋转器，然后作为正交偏振组合成单个输出端口。 有利地，通过在相同的隔离装置中提供分离或组合功能，减少了插入损耗，并且该装置更小并且更具成本效益。 作为另一个优点，提供了偏振分束器/组合器，其中通过双折射晶体行进的两个分离的正交偏振的光程长度相等，同时仍然允许经济地使用未被准直的光束的双折射晶体。
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公开(公告)号：EP1182492A2
公开(公告)日：2002-02-27
申请号：EP01307104.8
申请日：2001-08-21
发明人： Ducellier, Thomas , Tai, Kuochou , Chang, Kok-Wai , Chen, Jyehong , Cheng, Yihao
IPC分类号： G02F1/09
CPC分类号： G02F1/093 , G02F2203/05
摘要： The present invention relates to bi-directional circulators based on interleaver technology, e.g. birefringent crystal interleaver technology, that enables signals containing even number ITU channels to travel in one direction through the device, while signals containing odd number ITU channels travel in the opposite direction. Open and closed three and four port devices are disclosed, as well as several useful implementations of the three port device in combination with other optical components, which result in hybrid uni-directional and bi-directional devices.
摘要翻译： 本发明涉及基于交织器技术的双向循环器，例如， 双折射晶体交织器技术使得包含偶数ITU信道的信号能够通过器件在一个方向上行进，而包含奇数ITU信道的信号沿相反方向行进。 公开了开放和关闭的三个和四个端口设备，以及三个端口设备与其他光学组件的组合的几个有用的实现，其导致混合的单向和双向设备。
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公开(公告)号：EP1113307A3
公开(公告)日：2003-12-03
申请号：EP00311585.4
申请日：2000-12-21
发明人： Chang, Kok-Wai , Guan, Kejian , Zhang, Yong
CPC分类号： H04B10/61 , G02B27/283 , G02F1/093
摘要： An optical circulator having a dual fiber collimator and a single fiber collimator is described. The circulator provides a non-reciprocal functionality that directs input signals from a first fiber of the dual fiber collimator to the single fiber collimator. Input signals from the single fiber collimator are directed to a second fiber of the dual fiber collimator. The circulator includes birefringent wedges that change the angle of signals from the single fiber collimator to direct the signals to the second fiber of the dual fiber collimator. Because the circulator includes two collimators rather than three collimators, the circulator is more compact than a circulator having three collimators.
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公开(公告)号：EP1182492A3
公开(公告)日：2002-12-18
申请号：EP01307104.8
申请日：2001-08-21
发明人： Ducellier, Thomas , Tai, Kuochou , Chang, Kok-Wai , Chen, Jyehong , Cheng, Yihao
CPC分类号： G02F1/093 , G02F2203/05
摘要： The present invention relates to bi-directional circulators based on interleaver technology, e.g. birefringent crystal interleaver technology, that enables signals containing even number ITU channels to travel in one direction through the device, while signals containing odd number ITU channels travel in the opposite direction. Open and closed three and four port devices are disclosed, as well as several useful implementations of the three port device in combination with other optical components, which result in hybrid uni-directional and bi-directional devices.
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公开(公告)号：EP1176451A2
公开(公告)日：2002-01-30
申请号：EP01306080.1
申请日：2001-07-13
发明人： Wills, Gonzalo , Wall, Pierre D. , Chang, Kok-Wai , Jin, Fahong , Wang, Xinglong
CPC分类号： G02B6/2773 , G02B6/272 , G02B6/2746 , G02B6/32 , G02B27/283
摘要： The present invention relates to an isolated polarization beam splitter or combiner, for joining light from different inputs into one common port, and for dividing a beam of light into orthogonal polarizations. In both modes of operation, the splitter/combiner provides isolation preventing transmission of light in a reverse direction. As a splitter, a beam of light is separated through a birefringent material into sub-beams of orthogonal polarization components, and each sub-beam is passed through a non-reciprocal polarization rotator to rotate the polarization so that a reflected beam, or other counter-transmitted light cannot return on the same path through the birefringent material to the source. As a combiner, two separate beams of light are launched with known orthogonal polarizations into a first birefringent material, passed through a non-reciprocal polarization rotator and then combined as orthogonal polarizations into a single output port. Advantageously, by providing the splitting or combining function in a same isolating device, insertion losses are reduced and the device is smaller and more cost effective. As a further advantage, a polarization beam splitter/combiner is provided in which the optical path length for the two separated orthogonal polarizations traveling through a birefringent crystal is equal, while still permitting the economical use of birefringent crystals with an uncollimated beam of light.
摘要翻译： 本发明涉及一种孤立的偏振分束器或组合器，用于将来自不同输入的光连接到一个公共端口中，并将光束分成正交偏振。 在这两种操作模式中，分光器/合成器提供隔离，防止反向传输光。 作为分束器，通过双折射材料将光束分离成正交偏振分量的子光束，并且使每个子光束通过非互易偏振旋转器以旋转偏振，以便反射光束或其他计数器 透射光不能通过双折射材料返回到光源。 作为组合器，两个单独的光束以已知的正交偏振发射到第一双折射材料中，穿过非互易偏振旋转器，然后作为正交偏振组合成单个输出端口。 有利的是，通过在相同的隔离装置中提供分离或组合功能，插入损耗减小并且装置更小且更节省成本。 作为进一步的优点，提供了一种偏振分束器/组合器，其中，通过双折射晶体的两个分开的正交偏振的光路长度相等，同时仍然允许经济地使用具有未矫正光束的双折射晶体。
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