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1. 发明公开

EP3467556A1 OPTICAL SWITCH AND OPTICAL SWITCHING SYSTEM 有权
公开(公告)号：EP3467556A1
公开(公告)日：2019-04-10
申请号：EP17836154.9
申请日：2017-03-01
申请人： Huawei Technologies Co., Ltd.
发明人： XING, Jiejiang , TU, Xin , LI, Ming
IPC分类号： G02B6/35
摘要： This application discloses an optical switch and an optical switching system. The optical switch includes a first waveguide, a second waveguide, and a movable waveguide, the first waveguide and the second waveguide are immovable relative to a substrate and are located in a first plane, and an optical coupling relationship exists between the first waveguide and the second waveguide; the movable waveguide is movable relative to the substrate, and may be optically coupled to a first input section or a first output section of the first waveguide; when the movable waveguide is located at a first location, the movable waveguide is optically decoupled from the first waveguide, and the optical switch is in a through state; and when the movable waveguide is located at a second location, the movable waveguide is optically coupled to the first input section or the first output section, and the optical switch is in a drop state. The optical switch in this application changes a transmission direction of an optical signal by changing a location of the movable waveguide, and does not include intersecting optical waveguides, so that a loss caused by intersecting is avoided. In addition, the optical signal does not need to pass through a coupler in the through state, and the optical signal needs to pass through only one coupler in the drop state, thereby reducing a loss.

2. 发明公开

EP3208960A1 MODE CONVERTER, AND MULTIMODE WAVEGUIDE TRANSMISSION APPARATUS AND METHOD 有权
标题翻译：模转换器和多模波导传输装置和方法
公开(公告)号：EP3208960A1
公开(公告)日：2017-08-23
申请号：EP14905486.8
申请日：2014-11-07
申请人： Huawei Technologies Co., Ltd.
发明人： ZHAO, Fei , TU, Xin
IPC分类号： H04J14/04
CPC分类号： G02B6/14 , G02B6/12 , G02B6/124 , G02B6/125 , G02B6/126 , G02B6/13 , G02B6/2821 , G02B6/3885 , G02B2006/121 , H04B10/2581 , H04J14/04
摘要： A mode converter provided in embodiments of the present invention includes an input multimode waveguide, an output multimode waveguide, and a first conversion waveguide, where the input multimode waveguide is configured to receive a first signal, and a mode of the first signal is a first mode; the first conversion waveguide has an input coupling waveguide with a first effective refractive index, and has an output coupling waveguide with a second effective refractive index; the first conversion waveguide is configured to: perform, by using the input coupling waveguide, evanescent wave coupling on the first signal that is in the first mode and that is transmitted in the input multimode waveguide, and couple the first signal to the second mode of the output multimode waveguide by using the output coupling waveguide, so as to obtain the first signal in the second mode; and the output multimode waveguide is configured to output the first signal in the second mode.
摘要翻译：本发明实施例提供的一种模式转换器，包括输入多模波导，输出多模波导和第一转换波导，所述输入多模波导用于接收第一信号，所述第一信号的模式为第一信号模式; 所述第一转换波导具有具有第一有效折射率的输入耦合波导，并且具有具有第二有效折射率的输出耦合波导; 所述第一转换波导被配置为：通过使用所述输入耦合波导对在所述第一模式中的所述第一信号中的并且在所述输入多模波导中发送的衰减波耦合执行耦合，并且将所述第一信号耦合到所述第二模式所述输出多模波导通过使用所述输出耦合波导，从而获得所述第二模式下的所述第一信号; 并且输出多模式波导配置为在第二模式下输出第一信号。

3. 发明授权

EP3208960B1 MODE CONVERTER 有权
公开(公告)号：EP3208960B1
公开(公告)日：2019-09-11
申请号：EP14905486.8
申请日：2014-11-07
申请人： Huawei Technologies Co., Ltd.
发明人： ZHAO, Fei , TU, Xin
IPC分类号： H04J14/04 , G02B6/14 , H04B10/2581 , G02B6/38 , G02B6/12 , G02B6/124 , G02B6/126 , G02B6/13

4. 发明公开

EP3441817A1 OPTICAL SWITCH 有权
公开(公告)号：EP3441817A1
公开(公告)日：2019-02-13
申请号：EP16901003.0
申请日：2016-10-31
申请人： Huawei Technologies Co., Ltd.
发明人： XING, Jiejiang , LI, Ming , TU, Xin
IPC分类号： G02F1/313 , G02B6/125
摘要： The present invention discloses an optical switch (100), including a first optical waveguide (121), a second optical waveguide (122), and a first heater (110), where a place at which a distance between the first optical waveguide (121) and the second optical waveguide (122) is the smallest is a junction, the first optical waveguide (121) includes a first optical sub-waveguide (1211) and a third optical sub-waveguide (1212), and the second optical waveguide (122) includes a second optical sub-waveguide (1221) and a fourth optical sub-waveguide (1222); the first heater (110) is adjacent to the third optical sub-waveguide (1212); and there is a first dielectric material (140) between the first heater (110) and the third optical sub-waveguide (1212), and there is a second dielectric material (141) between the third optical sub-waveguide (1212) and the fourth optical sub-waveguide (1222), where a thermal conductivity of the first dielectric material (140) is greater than a thermal conductivity of the second dielectric material (141). The optical switch (100) in the present invention has advantages such as high heating efficiency, a small quantity of heaters, and simple control.

5. 发明公开

EP3159719A1 SPOTSIZE CONVERTER AND APPARATUS FOR OPTICAL CONDUCTION 有权
公开(公告)号：EP3159719A1
公开(公告)日：2017-04-26
申请号：EP14897866.1
申请日：2014-07-16
申请人： Huawei Technologies Co. Ltd.
发明人： TU, Xin , FU, Hongyan
IPC分类号： G02B6/14 , G02B6/26
CPC分类号： G02B6/14 , G02B6/1228 , G02B6/125 , G02B6/26 , G02B6/305 , G02B2006/121
摘要： A spotsize converter (200) includes a substrate layer (201); a first coverage layer (202) disposed above the substrate layer (201); an isolating layer (203) disposed between the substrate layer (201) and the first coverage layer (202); and a waveguide (204) disposed inside the first coverage layer (202), where the waveguide (204) is symmetrical along a principal axis. The waveguide (204) includes an equal-width first waveguide (301), an equal-width second waveguide (302), and a third waveguide (303). A first end of the third waveguide (303) is connected to a first end of the first waveguide (301) and a first end of the second waveguide (302), and the first waveguide (301), the second waveguide (302), and the third waveguide (303) form a Y shape. Along a first direction of the principal axis, a width of the third waveguide (303) gradually increases, and a distance, in a second direction, between the first waveguide (301) and the second waveguide (302) gradually decreases. The spotsize converter (200) can be used to implement spot size conversion between an optical fiber and an optical waveguide, and a coupling loss between the optical fiber and the optical waveguide can be reduced by using the spotsize converter (200).
摘要翻译：点标式转换器（200）包括衬底层（201）; 布置在所述衬底层（201）上方的第一覆盖层（202）; 布置在所述衬底层（201）和所述第一覆盖层（202）之间的隔离层（203）; 和布置在第一覆盖层（202）内部的波导（204），其中波导（204）沿主轴对称。波导（204）包括等宽第一波导（301），等宽第二波导（302）和第三波导（303）。第三波导303的第一端连接第一波导301的第一端和第二波导302的第一端，第一波导301，第二波导302，和第三波导（303）形成Y形。沿主轴的第一方向，第三波导（303）的宽度逐渐增加，并且第一波导（301）和第二波导（302）之间在第二方向上的距离逐渐减小。点标尺转换器200可以用于实现光纤和光波导之间的光点尺寸转换，并且可以通过使用点尺寸转换器200来减小光纤和光波导之间的耦合损耗。

6. 发明公开

EP3499282A1 POLARIZATION INDEPENDENT OPTICAL DEVICE 有权
公开(公告)号：EP3499282A1
公开(公告)日：2019-06-19
申请号：EP18799266.4
申请日：2018-04-08
申请人： Huawei Technologies Co., Ltd.
发明人： JI, Ruiqiang , TU, Xin , LI, Yanbo , FU, Shengmeng
IPC分类号： G02B6/293
摘要： This application relates to the field of fiber optic communications, and discloses a polarization independent optical device. The polarization independent optical device includes an input/output preprocessing optical path and M add/drop optical paths. Any add/drop optical path may be configured to drop a first Q TE and a first P TE that meet a resonance condition of a microring included in the add/drop optical path, that is, each add/drop optical path may be configured to drop a desired optical signal. Any add/drop optical path may also be configured to transmit an input optical signal to the input/output preprocessing optical path, that is, each add/drop optical path may also be configured to add a desired optical signal. Therefore, when any of the M add/drop optical paths is configured to drop a desired optical signal, another add/drop optical path may be configured to add a desired optical signal. In other words, the polarization independent optical device provided by this application can simultaneously drop a desired optical signal and add a desired optical signal.

7. 发明授权

EP3073302B1 POLARIZER AND POLARIZATION MODULATION SYSTEM 有权
公开(公告)号：EP3073302B1
公开(公告)日：2018-09-26
申请号：EP13899938.8
申请日：2013-12-20
申请人： Huawei Technologies Co., Ltd.
发明人： TU, Xin , FU, Hongyan , LIU, Wanyuan
IPC分类号： G02B6/27
CPC分类号： G02F1/0136 , G02B6/126 , G02B6/2813 , G02F1/0147 , G02F1/025 , G02F1/095 , G02F2201/05 , G02F2201/58 , G02F2202/10 , G02F2202/105 , G02F2203/07
摘要： The present invention provides a polarizer and a polarization modulation system. The polarizer includes at least one MMI multi-mode waveguide, where one side of each MMI multi-mode waveguide is connected to an input waveguide, and the other side is connected to an output waveguide; an end portion of the side, on which the output waveguide is located, of the MMI multi-mode waveguide is provided with an adjustable portion, and the adjustable portion is connected to the output waveguide; and the polarizer further includes a controller connected to the adjustable portion, where the controller is configured to perform control to change a material property of the adjustable portion, so that the output waveguide outputs optical signals in different polarization states. The present invention implements adjustable polarization, and the structure is simple.

8. 发明授权

EP3159719B1 SPOTSIZE CONVERTER AND APPARATUS FOR OPTICAL CONDUCTION 有权
公开(公告)号：EP3159719B1
公开(公告)日：2018-05-30
申请号：EP14897866.1
申请日：2014-07-16
申请人： Huawei Technologies Co. Ltd.
发明人： TU, Xin , FU, Hongyan
IPC分类号： G02B6/30 , G02B6/122 , G02B6/125 , G02B6/12
CPC分类号： G02B6/14 , G02B6/1228 , G02B6/125 , G02B6/26 , G02B6/305 , G02B2006/121
摘要： A spotsize converter (200) includes a substrate layer (201); a first coverage layer (202) disposed above the substrate layer (201); an isolating layer (203) disposed between the substrate layer (201) and the first coverage layer (202); and a waveguide (204) disposed inside the first coverage layer (202), where the waveguide (204) is symmetrical along a principal axis. The waveguide (204) includes an equal-width first waveguide (301), an equal-width second waveguide (302), and a third waveguide (303). A first end of the third waveguide (303) is connected to a first end of the first waveguide (301) and a first end of the second waveguide (302), and the first waveguide (301), the second waveguide (302), and the third waveguide (303) form a Y shape. Along a first direction of the principal axis, a width of the third waveguide (303) gradually increases, and a distance, in a second direction, between the first waveguide (301) and the second waveguide (302) gradually decreases. The spotsize converter (200) can be used to implement spot size conversion between an optical fiber and an optical waveguide, and a coupling loss between the optical fiber and the optical waveguide can be reduced by using the spotsize converter (200).

9. 发明公开

EP3312647A1 POLARIZATION MODE CONVERTER 有权
标题翻译：极化模式转换器
公开(公告)号：EP3312647A1
公开(公告)日：2018-04-25
申请号：EP15898038.3
申请日：2015-07-16
申请人： Huawei Technologies Co., Ltd.
发明人： TU, Xin
IPC分类号： G02B6/126
CPC分类号： G02B6/126 , G02B6/1228 , G02B6/125 , G02B6/14 , G02B6/2726 , G02B6/2766 , G02B6/2773 , G02B2006/12097 , G02B2006/12152 , H04J14/04
摘要： A polarization mode converter is provided and includes a rectangular waveguide (101), a first tapered waveguide (102), and a second tapered waveguide (103). A height of the rectangular waveguide (101) is a first height H1. A side of the first tapered waveguide (102) is connected to the rectangular waveguide (101). A width of the first tapered waveguide (102) changes gradually. A height of the first tapered waveguide (102) is a second height H2, and the second height H2 is less than the first height H1. The second tapered waveguide (103) is unconnected to the rectangular waveguide (101), and the second tapered waveguide (103) is unconnected to the first tapered waveguide (102). A width of the second tapered waveguide (103) changes gradually. A height of the second tapered waveguide (103) is the first height H1. A distance between a first end of the second tapered waveguide (103) and the rectangular waveguide (101) is a first distance, a distance between a second end of the second tapered waveguide (103) and the rectangular waveguide (101) is a second distance, and the second distance is greater than the first distance. The first tapered waveguide (102) is located between the rectangular waveguide (101) and the second tapered waveguide (103).
摘要翻译：提供偏振模转换器，并且包括矩形波导（101），第一锥形波导（102）和第二锥形波导（103）。矩形波导（101）的高度是第一高度H1。第一锥形波导（102）的一侧连接到矩形波导（101）。第一锥形波导（102）的宽度逐渐变化。第一锥形波导（102）的高度是第二高度H2，并且第二高度H2小于第一高度H1。第二锥形波导（103）不连接到矩形波导（101），第二锥形波导（103）不连接到第一锥形波导（102）。第二锥形波导（103）的宽度逐渐变化。第二锥形波导（103）的高度是第一高度H1。第二锥形波导（103）的第一端与矩形波导（101）之间的距离为第一距离，第二锥形波导（103）的第二端与矩形波导（101）之间的距离为第二距离距离，并且第二距离大于第一距离。第一锥形波导（102）位于矩形波导（101）和第二锥形波导（103）之间。

10. 发明公开

EP3474051A1 OPTICAL SWITCH AND OPTICAL SWITCHING SYSTEM 有权
公开(公告)号：EP3474051A1
公开(公告)日：2019-04-24
申请号：EP17836155.6
申请日：2017-03-01
申请人： Huawei Technologies Co., Ltd.
发明人： TU, Xin
IPC分类号： G02B6/28
摘要： This application discloses an optical switch and an optical switching system. Both a first waveguide and a second waveguide of the optical switch are immovable relative to a substrate and are located in a first plane; a first deformable waveguide is also located in the first plane, a first section of the first deformable waveguide is fixed relative to the substrate, and a second section other than the first section can deform under control of a first actuator; when the first deformable waveguide is in a first state, the first deformable waveguide is optically decoupled from the first waveguide and the second waveguide, and the optical switch is in a through state; and when the first deformable waveguide is in a second state, the first deformable waveguide is optically coupled to the first waveguide and the second waveguide, and the optical switch is in a drop state. According to the optical switch in this application, the first section of the first deformable waveguide is fixed, and a remaining section deforms by virtue of toughness of the optical waveguide, so as to change a status of the optical switch. In this way, a weight carried by the actuator can be reduced, and a switching speed of the optical switch can be increased.

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