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61. 发明授权

US5111517A Polarization beam splitter for guided light 失效
标题翻译：用于指导光的偏振光束分离器
公开(公告)号：US5111517A
公开(公告)日：1992-05-05
申请号：US654544
申请日：1991-02-12
申请人： Luc Riviere
发明人： Luc Riviere
IPC分类号： G02F1/01 , G02F1/313
CPC分类号： G02F1/3136 , G02F2001/0144 , G02F2201/126 , G02F2202/20
摘要： This polarization beam splitter for guided light is e.g. produced on Z-propagating, X-cut LiNbO.sub.3 :Ti and comprises in series a passive Y-junction (66), an active phase shifter (68) and an active directional coupler (70), independent of the polarization and able to constitute a 3 dB coupler. Thus, on supplying a light wave to the input of the Y-branch and with the coupler constituting a 3 dB coupler, the TM and TE modes of the input wave are respectively obtained at the outputs of the coupler by appropriately polarizing the phase shifter. Application to optical fiber sensors or transducers and to the coherent transmission of information by monomode optical fibers.
摘要翻译：用于引导的该偏振分束器是例如。在Z传播的X切割LiNbO 3：Ti上产生，并且包括无源Y结（66），有源移相器（68）和有源定向耦合器（70），独立于极化并且能够构成 3 dB耦合器。因此，在向Y分支的输入端和构成3dB耦合器的耦合器提供光波时，通过适当地偏振移相器，分别在耦合器的输出处获得输入波的TM和TE模式。应用于光纤传感器或换能器以及通过单模光纤相干传输信息。

62. 发明授权

US5044712A Waveguided electrooptic switches using ferroelectric liquid crystals 失效
标题翻译：使用铁电液晶的波导电光开关
公开(公告)号：US5044712A
公开(公告)日：1991-09-03
申请号：US551099
申请日：1990-06-29
申请人： Richard A. Soref
发明人： Richard A. Soref
IPC分类号： G02F1/1333 , G02F1/141 , G02F1/313
CPC分类号： G02F1/1326 , G02F1/141 , G02F1/3132 , G02F1/3136 , G02F1/3137
摘要： A tiny, high speed, low cost electrooptic switch is provided having co-planar waveguides of silicon oxynitride and a ferro-electric liquid crystal layer overlying the waveguides. A voltage source causes the molecular optic axis of the liquid crystal to rotate 45-90 degrees within the plane of the liquid crystal layer to cause a change of state of the switch.
摘要翻译：提供了一种小型，高速度，低成本的电光开关，其具有氮氧化硅的共平面波导和覆盖在波导上的铁电液晶层。电压源使液晶的分子光轴在液晶层的平面内旋转45-90度，导致开关状态的变化。

63. 发明授权

US5016958A Optical switch having a phase change region therein 失效
标题翻译：其中具有相变区域的光开关
公开(公告)号：US5016958A
公开(公告)日：1991-05-21
申请号：US307059
申请日：1989-02-07
申请人： Bruce L. Booth
发明人： Bruce L. Booth
IPC分类号： G02B6/12 , G02B6/122 , G02B6/125 , G02B6/28 , G02F1/01 , G02F1/065 , G02F1/313
CPC分类号： G02B6/1221 , G02B6/125 , G02B6/2821 , G02F1/065 , G02F1/3136 , G02B2006/12145 , G02F1/0147 , G02F2201/07 , G02F2202/022
摘要： An optical switch for switching light from one leg of an optical circuit to another leg is characterized by an arrangement for altering the index of refraction of one of the legs with respect to the other leg. This results in a disparity in light velocity and a change in phase relationship for the light being propagated through the legs. When the legs are brought into a coupling region, there occurs a predetermined transfer of light from one leg to the other, depending upon the magnitude of the alteration in phase relationship between the light propagated in the legs.
摘要翻译：用于将来自光路的一条腿的光切换到另一条腿的光学开关的特征在于用于相对于另一条腿改变一条腿的折射率的装置。这导致光速度的差异以及通过腿传播的光的相位关系的变化。当腿部进入联接区域时，根据在腿部中传播的光线之间的相位关系变化的大小，发生预定的一次从一条腿到另一条腿的转移。

64. 发明授权

US4142775A Optical signal processing devices 失效
标题翻译：光信号处理装置
公开(公告)号：US4142775A
公开(公告)日：1979-03-06
申请号：US727047
申请日：1976-09-27
申请人： Vellayan Ramaswamy , Robert D. Standley
发明人： Vellayan Ramaswamy , Robert D. Standley
IPC分类号： G02F1/225 , G02F1/313 , G02B5/14
CPC分类号： G02F1/225 , G02F1/3136 , G02F2201/307 , G02F2203/055
摘要： Optical signal processing devices, primarily intended for use in integrated optical communication systems, include 3 dB coupled strip guide directional couplers. Each coupler is formed in a body of electrooptic material and includes electrodes bracketing at least one of the guides in the coupled region. Each coupler is fabricated so as to be overcoupled (i.e., greater than 3 dB coupling) when the coupling is synchronous. Voltage bias, supplied to the electrodes of each coupler, produces sufficient asynchronism to independently adjust each coupler to the desired 3 dB coupling condition. Permutation switches are produced by including a switchable phase shifter between two couplers. Channel drop filters are produced by including reflection gratings between two couplers. Differential phase detectors, for a pulse code modulation system, are produced by including a selected path length difference between the two strip guides connecting two couplers. A photolithographic technique for producing the required electrodes in precise registry with the strip guide couplers (typically characterized by 3 micrometer spacings) includes the use of the primary strip guide mask and a secondary mask to produce a photolithographic mask for defining the electrodes.
摘要翻译：主要用于集成光通信系统的光信号处理设备包括3 dB耦合条导向定向耦合器。每个耦合器形成在电光材料体中，并且包括围绕耦合区域中的至少一个引导件的电极。当耦合是同步的时，每个耦合器被制造成过耦合（即，大于3dB耦合）。提供给每个耦合器的电极的电压偏压产生足够的异步，以将每个耦合器独立地调整到所需的3 dB耦合条件。通过在两个耦合器之间包括可切换移相器来产生置换开关。信道降滤波器是通过在两个耦合器之间包括反射光栅来产生的。用于脉冲编码调制系统的差分相位检测器通过在连接两个耦合器的两个条形引导件之间包括选定的路径长度差来产生。用于产生精确对准带状引导耦合器（通常以3微米间隔为特征）的所需电极的光刻技术包括使用主条引导掩模和次掩模以产生用于限定电极的光刻掩模。

65. 发明授权

US11791899B2 Integrated optical transceiver 有权
公开(公告)号：US11791899B2
公开(公告)日：2023-10-17
申请号：US17857397
申请日：2022-07-05
申请人： Marvell Asia Pte Ltd.
发明人： Ding Liang , Mark Patterson , Roberto Coccioli , Radhakrishnan L. Nagarajan
IPC分类号： H04B10/40 , G02B6/42 , H01S5/12 , H01S5/02 , H01S5/0234 , G02F1/313 , H04J14/02
CPC分类号： H04B10/40 , G02B6/425 , H01S5/021 , H01S5/0234 , H01S5/12 , G02F1/3136 , G02F2201/02 , H04J14/0221
摘要： An optical transceiver includes a silicon photonics substrate, transmitter circuitry, and receiver circuitry that are heterogeneously integrated. The transmitter circuitry includes a plurality of laser devices formed on the silicon photonics substrate, each of the plurality of laser devices configured to generate a respective laser light, a plurality of modulators formed on the silicon photonics substrate, each of the plurality of modulators configured to modulate the laser lights based on driver signals and output, from the silicon photonics substrate, the modulated laser lights, and a driver formed on the silicon photonics substrate and configured to generate the driver signals. The receiver circuitry includes a photodetector configured to receive a plurality of optical signals and convert the plurality of optical signals to respective electrical signals and a transimpedance amplifier device configured to receive the electrical signals and output the electrical signals from the silicon photonics substrate as electrical outputs.

66. 发明授权

US11678091B2 Reduced crosstalk photonic switch 有权
公开(公告)号：US11678091B2
公开(公告)日：2023-06-13
申请号：US17735852
申请日：2022-05-03
申请人： OpenLight Photonics, Inc.
发明人： Jonathan Edgar Roth
IPC分类号： H04Q11/00 , G02B6/35 , H04B10/548 , G02F1/313
CPC分类号： H04Q11/0005 , G02B6/3546 , G02B6/3588 , G02F1/3136 , H04B10/548 , H04Q2011/0015 , H04Q2011/0049
摘要： Described are various configurations of reduced crosstalk optical switches. Various embodiments can reduce or entirely eliminate crosstalk using a coupler that has a power-splitting ratio that compensates for amplitude imbalance caused by phase modulator attenuation. Some embodiments implement a plurality of phase modulators and couplers as part of a dilated switch network to increase overall bandwidth and further reduce potential for crosstalk.

67. 发明授权

US10840672B2 Mode-locked semiconductor laser capable of changing output-comb frequency spacing 有权
公开(公告)号：US10840672B2
公开(公告)日：2020-11-17
申请号：US15680505
申请日：2017-08-18
申请人： Nokia Solutions and Networks OY
发明人： Guilhem de Valicourt , Michael S. Eggleston
IPC分类号： G02B6/12 , H01S5/10 , H01S5/30 , G02F1/313 , H01S5/065 , H01S5/125 , H01S5/14 , H01S3/106 , H01S3/105 , H01S5/02 , H01S3/107 , H01S5/0625 , H01S5/026
CPC分类号： H01S5/0657 , G02B6/12004 , G02F1/3136 , H01S3/105 , H01S3/106 , H01S5/1003 , H01S5/1007 , H01S5/1025 , H01S5/1039 , H01S5/125 , H01S5/141 , H01S5/3013 , G02B2006/12145 , G02B2006/12159 , H01S3/107 , H01S5/021 , H01S5/026 , H01S5/06256
摘要： A mode-locked semiconductor laser capable of changing the spacing between the carrier frequencies of its output comb. In an example embodiment, the mode-locked semiconductor laser is implemented as a hybrid solid-state device comprising a III-V semiconductor chip and a silicon chip attached to one another to form a laser cavity. The III-V semiconductor chip includes a gain medium configured to generate light in response to being electrically and/or optically pumped. The silicon chip includes a plurality of optical waveguides arranged to provide multiple optical paths of different effective lengths for the light generated in the laser cavity. Different optical paths can be controllably selected, using one or more optical switches connected between the optical waveguides, to change the effective optical length of the laser cavity and, as a result, the output-comb frequency spacing. In some embodiments, the output-comb frequency spacing can be changeable at least by a factor of 1.5.

68. 发明授权

US10641954B2 Interferometer and method of designing an interferometer 有权
公开(公告)号：US10641954B2
公开(公告)日：2020-05-05
申请号：US16080037
申请日：2017-02-24
申请人： OXFORD UNIVERSITY INNOVATION LIMITED
发明人： William Clements , Peter Humphreys , Benjamin Metcalf , Steven Kolthammer , Ian Walmsley
IPC分类号： G02B6/42 , G02B6/02 , G02B6/12 , H04B10/2581 , G02F1/313 , G06F30/00 , G02B6/293 , H04B10/70
CPC分类号： G02B6/12007 , G02F1/3136 , G06F30/00 , H04B10/2581 , G02B6/29344 , G02B6/29355 , G02B6/29395 , H04B10/70
摘要： A universal interferometer (100) for coupling modes of electromagnetic radiation according to a transformation has N inputs and N outputs for inputting and outputting N modes of electromagnetic radiation into and from the interferometer. Waveguides (101, 102, 103, 104, 105) pass through the interferometer to connect the N inputs to the N outputs and to carry the N modes of electromagnetic radiation. The waveguides provide crossing points between pairs of waveguides and a reconfigurable beam splitter (107) implements a reconfigurable reflectivity and a reconfigurable phase shift at each crossing point. The waveguides and crossing points are arranged such that each of the N modes of electromagnetic radiation is capable of coupling with each of the other modes of electromagnetic radiation at respective reconfigurable beam splitters. The couplings between modes at the reconfigurable beam splitters are configured such that the interferometer implements a transformation of the N modes between the N inputs and the N outputs.

69. 发明申请

US20190219890A1 COMPLEMENTARY OPTICAL PHASE SHIFTING ARRANGEMENT 审中-公开
公开(公告)号：US20190219890A1
公开(公告)日：2019-07-18
申请号：US15872176
申请日：2018-01-16
申请人： Cisco Technology, Inc.
发明人： Sean P. ANDERSON , Vipulkumar PATEL
IPC分类号： G02F1/313
CPC分类号： G02F1/3136 , G02F1/0121 , G02F1/0147 , G02F1/025 , G02F1/225 , G02F2202/10 , G02F2203/15 , G02F2203/50
摘要： An optical phase shifting arrangement and associated optical switching device and method are disclosed. The optical phase shifting arrangement comprises a first optical phase shifter configured to provide a first phase shift to an optical signal, and a second optical phase shifter configured to provide a second phase shift to the optical signal in addition to the first phase shift. During a predefined period, the first optical phase shifter and the second optical phase shifter are driven such that the second phase shift is substantially complementary to the first phase shift.

70. 发明授权

US10006809B2 Apparatus, systems, and methods for on-chip spectroscopy using optical switches 有权
公开(公告)号：US10006809B2
公开(公告)日：2018-06-26
申请号：US15429321
申请日：2017-02-10
申请人： Massachusetts Institute of Technology
发明人： Juejun Hu , Tian Gu , Hongtao Lin , Derek Matthew Kita , Anuradha M. Agarwal
IPC分类号： G01J5/02 , G01J3/453 , G01J3/02 , G02F1/313 , G02F1/31
CPC分类号： G01J3/4531 , G01J3/0218 , G02F1/313 , G02F1/3136 , G02F2001/311
摘要： A spectrometer includes an interferometer having a first interference arm and a second interference arm to produce interference patterns from incident light. At least one of the interference arms includes a series of cascaded optical switches connected by two (or more) waveguides of different lengths. Each optical switch directs the incident light into one waveguide or another, thereby changing the optical path length difference between the first interference arm and the second interference arm. This approach can be extended to multi-mode incident light by placing parallel interferometers together, each of which performs spectroscopy of one single mode in the multi-mode incident light. To maintain the compactness of the spectrometer, adjacent interferometers can share one interference arm.

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