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1. 发明授权

US12055759B2 Wavelength selective switch 有权
公开(公告)号：US12055759B2
公开(公告)日：2024-08-06
申请号：US18262161
申请日：2022-01-19
申请人： O-Net Communications (USA) Inc. , O-Net Technologies (Shenzhen) Group Co., Ltd
发明人： Chenjun Fan , Wenlu Wang , Zuowen Jiang
IPC分类号： G02B6/27 , G02B6/293 , G02B6/35
CPC分类号： G02B6/29302 , G02B6/272 , G02B6/274 , G02B6/2931 , G02B6/29311 , G02B6/3512 , G02B6/3518 , G02B6/3526 , G02B6/3546 , G02B6/356
摘要： This patent document discloses, among others, wavelength-selective switches (WSS) for redirecting optical WDM signals or channels based on a combination of spatially separating light in different optical polarizations in an optical birefringent material and using diffractive optics for separating light at different optical WDM wavelengths into spatially separated optical beam to perform wavelength-selective optical switching in optical WDM applications. Notably, the optics for processing the optical WDM signals in the disclosed optical WSS devices is designed to provide scalable optical WSS devices where different WDM signals share optical components to reduce designed optical components for different WDM signals.

2. 发明公开

US20230258870A1 DEMULTIPLEXING FILTER AND METHOD 审中-公开
公开(公告)号：US20230258870A1
公开(公告)日：2023-08-17
申请号：US18014480
申请日：2021-06-25
申请人： Onpoint Technologies, LLC
发明人： Andrew D. SAPPEY , Bernard P. MASTERSON , Pei HUANG
IPC分类号： G02B6/293 , G01N21/3504 , G01N21/25
CPC分类号： G02B6/2931 , G02B6/2938 , G01N21/3504 , G01N21/255 , G01N2021/3129
摘要： A demultiplexed filtering method includes propagating an optical beam from an input optical fiber to a diffraction grating to produce a first and a second diffracted beam having a respective first center wavelength λ1 and a second center-wavelength λ2>λ1 of the optical beam. The first diffracted beam propagates back toward the input optical fiber at a first diffracted angle determined in part by λ1 and a diffraction order m1 of the first diffracted beam. The second diffracted beam propagates back toward the input optical fiber at a second diffracted angle determined in part by λ2 and a diffraction order m2

3. 发明授权

US11675134B1 Optical bandpass filter based on reflective devices 有权
公开(公告)号：US11675134B1
公开(公告)日：2023-06-13
申请号：US17306801
申请日：2021-05-03
申请人： Skorpios Technologies, Inc.
发明人： Guoliang Li , Stephen B. Krasulick
IPC分类号： G02B6/293
CPC分类号： G02B6/29389 , G02B6/2931 , G02B6/29346 , G02B6/29395
摘要： An optical bandpass filter includes an optical splitter having at least four ports, one of the ports being designated as an input port and one of the ports being designated as an output port. First and second reflectors couple with respective third and fourth ones of the ports. The splitter directs portions of the input light from the input port, into the third and fourth ports, such that the portions of the input light propagate toward the respective first and second reflectors. The first and second reflectors reflect light having wavelengths within a predetermined wavelength range, back toward the splitter, as wavelength-selected light, and transmit light having wavelengths that are outside of the predetermined wavelength range, away from the splitter. The splitter directs at least a portion of the wavelength-selected light that propagates back toward the splitter, into the output port, as output light.

4. 发明授权

US10877200B2 Beam steering method and device 有权
公开(公告)号：US10877200B2
公开(公告)日：2020-12-29
申请号：US16118033
申请日：2018-08-30
申请人： SAMSUNG ELECTRONICS CO., LTD. , The Board of Trustees of the Leland Stanford Junior University
发明人： Wonjae Joo , Mark L. Brongersma , Junghyun Park
IPC分类号： G02B5/32 , G02F1/29 , G02B6/293 , G03H1/26 , G03H1/28 , G03H1/04
CPC分类号： G02B5/32 , G02B6/2931 , G02F1/292 , G03H1/26 , G03H1/2645 , G03H1/28 , G03H2001/0473 , G03H2001/266 , G03H2222/13 , G03H2222/14
摘要： A beam steering method and device are provided. The beam steering method includes outputting, from a hologram recording medium on which a plurality of signal light beams having different steering information are recorded, signal light beam having specific steering information, by making reference light having a specific characteristic incident on the hologram recording medium. The method further includes o obtaining information about an object existing in the external environment based on the output signal light.

5. 发明申请

US20170299858A1 Wavelength Selective Switch 有权
公开(公告)号：US20170299858A1
公开(公告)日：2017-10-19
申请号：US15636941
申请日：2017-06-29
申请人： Huawei Technologies Co., Ltd.
发明人： Liangjia Zong , Han Zhao
IPC分类号： G02B26/08 , G02B6/293 , G02B6/35
CPC分类号： G02B6/293 , G02B6/2931 , G02B6/29395 , G02B6/3512 , G02B6/3534 , G02B6/3548 , G02B6/3556 , G02B6/356 , G02B6/3588 , G02B26/08
摘要： A wavelength selective switch (WSS) includes a liquid crystal on silicon (LCOS) panel and a fiber array with multiple ports. The two outermost ports of the multiple ports are a first port and a second port. An included angle between an intersecting line of the LCOS panel and a first plane in which the incident light entering the LCOS panel and emergent light exiting the LCOS panel are located, and incident light entering the LCOS panel is (90−θ) degrees, where a wavelength of the incident light is same as a wavelength of the emergent light, θ is less than 15 degrees, the first port and the included angle of (90−θ) degrees are located on a same side of the incident light, and the second port and the included angle of (90−θ) degrees are separately located on two sides of the incident light.

6. 发明申请

US20170214482A1 Polarization Diverse Wavelength Selective Switch 审中-公开
公开(公告)号：US20170214482A1
公开(公告)日：2017-07-27
申请号：US15482739
申请日：2017-04-08
申请人： Finisar Corporation
发明人： Steven James Frisken
IPC分类号： H04J14/02 , H04J14/06 , H04Q11/00
CPC分类号： H04J14/0212 , G02B6/2931 , G02B6/29373 , G02B6/3512 , G02B6/3556 , G02B6/356 , H04J14/0221 , H04J14/06 , H04Q11/0003 , H04Q11/0005 , H04Q2011/0016 , H04Q2011/0035 , H04Q2011/0039
摘要： Described herein is a wavelength selective switch (WSS) type optical switching device (1) configured for switching input optical beams from input optical fiber ports (3, 5 and 7) to an output optical fiber port (9). Device (1) includes a wavelength dispersive grism element (13) for spatially dispersing the individual wavelength channels from an input optical beam in the direction of a second axis (y-axis). The optical beams propagate from input ports (3, 5 and 7) in a forward direction and are reflected from a liquid crystal on silicon (LCOS) device (11) in a return direction to output port (9). The input optical beams are transmitted through a port selecting module (21), which provides polarization diversity to device (1) and provides capability to restrict optical beams returning from LCOS device (11) from being coupled back into input ports (3, 5 and 7).

7. 发明申请

US20170168237A1 POLARIZATION INDEPENDENT MULTIPLEXER / DEMULTIPLEXER 审中-公开
公开(公告)号：US20170168237A1
公开(公告)日：2017-06-15
申请号：US15374856
申请日：2016-12-09
申请人： FINISAR CORPORATION
发明人： Daniel Mahgerefteh , Jared Mikkelsen
IPC分类号： G02B6/12 , G02B6/126 , G02B6/10
CPC分类号： G02B6/12007 , G02B6/105 , G02B6/107 , G02B6/12023 , G02B6/124 , G02B6/126 , G02B6/2931 , G02B2006/12097
摘要： An integrated optical component includes at least one input waveguide, at least one output waveguide; a first slab waveguide having a first refractive index, n1. The first slab waveguide may be disposed between at least one of the input waveguides and at least one of the output waveguides. The integrated optical component may further include a second slab waveguide having a second refractive index, n2. The integrated optical component may also include a third cladding slab having a third refractive index, n3. The third cladding slab may be disposed between the first slab and the second slab. The thickness of the second slab waveguide and the thickness of the third slab waveguide are adjustable to reduce a birefringence of the integrated optical component.

8. 发明申请

US20170048016A1 BROADBAND HIGH-SPEED WAVELENGTH-DIVISION MULTIPLEXED RECEIVER USING MULTIPLE PHOTODETECTORS PER CHANNEL 审中-公开
标题翻译：宽带高速波分复用接收器，每通道使用多个光电转换器
公开(公告)号：US20170048016A1
公开(公告)日：2017-02-16
申请号：US15237355
申请日：2016-08-15
申请人： Skorpios Technologies, Inc.
发明人： Guoliang Li , Murtaza Askari
IPC分类号： H04J14/02 , G02B6/12 , G02B6/293 , H04B10/60 , G02B6/43
CPC分类号： H04J14/02 , G02B6/00 , G02B6/12004 , G02B6/2931 , G02B6/2938 , G02B6/43 , G02B2006/12097 , H04B10/60 , H04B10/675
摘要： An optical receiver, used in wavelength-division multiplexing, has multiple photodetectors per channel. The optical receiver comprises a demultiplexer to separate incoming light into different output waveguides, one output waveguide for each channel. A splitter is used in each output waveguide to split each output waveguide into two or more branches. A separate photodetector is coupled with each branch so that two or more photodetectors are used to measure each channel.
摘要翻译：用于波分复用的光接收机每个通道具有多个光电探测器。光接收器包括一个多路分离器，用于将入射光分离成不同的输出波导，每个通道一个输出波导。在每个输出波导中使用分离器将每个输出波导分成两个或更多个分支。单独的光电检测器与每个分支耦合，使得两个或更多个光电探测器用于测量每个通道。

9. 发明申请

US20170041689A1 OPTICAL COMMUNICATIONS APPARATUS AND METHOD 有权
标题翻译：光通信设备和方法
公开(公告)号：US20170041689A1
公开(公告)日：2017-02-09
申请号：US15331268
申请日：2016-10-21
申请人： Huawei Technologies Co., Ltd.
发明人： Yunfei YAN , Zhiyong FENG , Han ZHAO , Liangjia ZONG
IPC分类号： H04Q11/00
CPC分类号： H04Q11/0062 , G02B6/266 , G02B6/2713 , G02B6/2931 , H04Q11/0005 , H04Q2011/0016 , H04Q2011/0026 , H04Q2011/0037 , H04Q2011/0052 , H04Q2011/009
摘要： Embodiments of the present invention provide an optical communications apparatus, where the apparatus includes: an input system, a first optical switch array, and an output system, where the input system includes N input ports that are one-dimensionally arranged on a first plane, a first beam expander, a demultiplexer, and a first optical path changer; the first optical switch array includes N×K first optical switch units that are two-dimensionally arranged on a second plane, and the first optical switch units can rotate in a first axial line direction and a second axial line direction; and the output system includes a second optical path changer, a second beam expander, a second optical switch array, and M output ports that are two-dimensionally arranged.
摘要翻译：本发明的实施例提供了一种光通信装置，其中该装置包括：输入系统，第一光开关阵列和输出系统，其中输入系统包括一维排列在第一平面上的N个输入端口，第一光束扩展器，解复用器和第一光路改变器; 第一光开关阵列包括二维布置在第二平面上的N×K个第一光开关单元，并且第一光开关单元可以在第一轴线方向和第二轴线方向上旋转; 并且输出系统包括二维布置的第二光路改变器，第二光束扩展器，第二光开关阵列和M个输出端口。

10. 发明申请

US20160377813A1 OPTICAL PHASE DIVERSITY RECEIVER FOR COHERENT OPTICAL COMMUNICATION 有权
标题翻译：用于相干光通信的光相位分集接收机
公开(公告)号：US20160377813A1
公开(公告)日：2016-12-29
申请号：US15170626
申请日：2016-06-01
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
发明人： Shin Mo AN , Oh Kee KWON
IPC分类号： G02B6/293 , G02B6/27
CPC分类号： G02B6/2931 , G02B6/2706 , G02B6/2773 , G02B6/29307 , G02B6/29308 , G02B6/2938
摘要： An optical phase diversity receiver may include: a diffraction grating including grating surfaces; a first input waveguide to which a first optical signal is inputted; a second input waveguide to which a second optical signal is inputted; and a slab waveguide including an input terminal optically coupled with the first and second input waveguides, and an output terminal provided at a position at which optical signals reflected by the diffraction grating reach the slab waveguide. Every determined number of grating surfaces are chirped in an identical manner. The slab waveguide is configured to guide the first and the second optical signals to the diffraction grating and guide the optical signals reflected by the diffraction grating to the output terminal. The grating surfaces are configured such that each of the optical signals reflected by the diffraction grating is divided into the predetermined number by optical power distribution.
摘要翻译：光相位分集接收器可以包括：包括光栅表面的衍射光栅; 输入第一光信号的第一输入波导; 输入第二光信号的第二输入波导; 以及平板波导，包括与第一和第二输入波导光耦合的输入端，以及设置在由衍射光栅反射的光信号到达平板波导的位置的输出端。每个确定数量的光栅表面以相同的方式被啁啾。平板波导被配置为将第一和第二光信号引导到衍射光栅，并将由衍射光栅反射的光信号引导到输出端。光栅表面被配置为使得由衍射光栅反射的每个光信号通过光功率分布被划分成预定数量。

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