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71. 发明授权

US11860058B2 Fiber-optic testing source and fiber-optic testing receiver for multi-fiber cable testing 有权
公开(公告)号：US11860058B2
公开(公告)日：2024-01-02
申请号：US17234378
申请日：2021-04-19
申请人： VIAVI SOLUTIONS INC.
发明人： Joachim Lönne
IPC分类号： G01M11/00 , G02B6/38 , G01M11/08 , G02B6/43 , H04B10/073
CPC分类号： G01M11/3136 , G01M11/088 , G01M11/31 , G01M11/3145 , G01M11/3154 , G01M11/3172 , G01M11/3181 , G01M11/331 , G01M11/333 , G01M11/336 , G01M11/39 , G02B6/385 , G02B6/43 , H04B10/0731
摘要： According to examples, a fiber-optic testing source for testing a multi-fiber cable may include a laser source communicatively coupled to a plurality of optical fibers connected to a connector. The fiber-optic testing source may include at least one photodiode communicatively coupled to at least one of the plurality of optical fibers by at least one corresponding splitter to implement a communication channel between the fiber-optic testing source and a fiber-optic testing receiver. The communication channel may be operable independently from a polarity associated with the multi-fiber cable. The fiber-optic testing receiver may include a plurality of photodiodes communicatively coupled to a plurality of optical fibers. The fiber-optic testing receiver may include at least one laser source communicatively coupled to at least one of the plurality of optical fibers by at least one corresponding splitter to implement the communication channel between the fiber-optic testing receiver and a fiber-optic testing source.

72. 发明授权

US11768127B2 Fiber optic virtual sensing system and method 有权
公开(公告)号：US11768127B2
公开(公告)日：2023-09-26
申请号：US17407881
申请日：2021-08-20
申请人： Viavi Solutions France SAS
发明人： Andre Champavere
IPC分类号： G01M11/00
CPC分类号： G01M11/3145 , G01M11/3136
摘要： In some examples, fiber optic virtual sensing may include generating, by a virtual sensor generator that is operatively connected to a device under test (DUT), at least one virtual sensor along the DUT. A DUT interrogator may be operatively connected to the DUT to transmit a stimulus optical signal into the DUT. The DUT interrogator may analyze reflected light resulting from the transmitted stimulus optical signal. The DUT interrogator may determine, based on the analysis of the reflected light, an attribute of the DUT sensed by the at least one virtual sensor.

73. 发明公开

US20230283365A1 APPARATUSES INTEGRATING SEPARATE WDM MODULES AND OTDR/SWITCH MODULES 审中-公开
公开(公告)号：US20230283365A1
公开(公告)日：2023-09-07
申请号：US17687098
申请日：2022-03-04
申请人： VIAVI SOLUTIONS INC.
发明人： Patrick FARAJ
IPC分类号： H04B10/071 , G01M11/00
CPC分类号： H04B10/071 , G01M11/3136 , H04J14/0212
摘要： According to examples, an apparatus may include a wavelength division multiplexing (WDM) module including a WDM housing having a WDM front panel and a WDM component housed within the WDM housing. The apparatus may also include an optical time-domain reflectometer (OTDR)/switch module integrated with the WDM module, the OTDR/switch module including an OTDR housing having an OTDR front panel and an OTDR/switch component housed within the OTDR housing. The WDM housing may be connectable with the OTDR housing to cause respective side edges of the WDM front panel and the OTDR front panel to be adjacent to each other when the WDM housing is connected to the OTDR housing.

74. 发明授权

US11726002B2 Optical test instrument with removable cartridge 有权
公开(公告)号：US11726002B2
公开(公告)日：2023-08-15
申请号：US17303355
申请日：2021-05-27
申请人： EXFO Inc.
发明人： Michael Simard , Kristine Palanjyan , Stephane Perron
IPC分类号： G01M11/08 , G01M11/00 , G02B6/38 , G01J1/02 , G01J1/04 , G02B6/42
CPC分类号： G01M11/086 , G01J1/0271 , G01J1/04 , G01M11/3136 , G01M11/3154 , G02B6/3825 , G02B6/3827 , G02B6/3893 , G02B6/3897 , G02B6/421
摘要： An optical test instrument, in combination with a removable connector cartridge is provided. A method of replacing a damaged or worn optic fiber interface is also provided. The optical test instrument has casing having a cartridge receiving cavity therein with an inner end provided with a test instrument optical port; and an outer end provided with a cartridge receiving opening. The connector cartridge is sized and configured to be inserted in the cartridge receiving cavity. The connector cartridge has a cartridge inner end for facing the test instrument optical port when in use, and a cartridge outer end for receiving an optic fiber from a device under test (DUT). The connector cartridge houses a fiber optic cable extending between the cartridge inner end and the cartridge outer end. The connector cartridge is removably connectable to the instrument casing to allow replacement of the connector cartridge when the cartridge outer end is worn or damaged.

75. 发明授权

US10067030B2 Multifiber interrogation with reflectometry techniques 有权
公开(公告)号：US10067030B2
公开(公告)日：2018-09-04
申请号：US15683471
申请日：2017-08-22
申请人： Schlumberger Technology Corporation
发明人： Arthur Hartog , Paul Frederick Cilgrim Dickenson
IPC分类号： G02B6/00 , G01M11/00 , G01D5/26 , G01H9/00 , G01K11/32 , G01D5/353 , G01D21/02 , G01V1/22
CPC分类号： G01M11/3136 , G01D5/266 , G01D5/268 , G01D5/35383 , G01D5/35387 , G01D5/35396 , G01D21/02 , G01H9/004 , G01K11/32 , G01V1/226
摘要： A system and method for simultaneously addressing multiple parallel distributed fiber optic sensors using a single interrogation instrument is disclosed. One or more of the fiber optic sensors are provided with a non-reflective delay element to prevent an overlap in time between backscatter returns from the distributed fiber optic sensors, thereby allowing the backscatter returns from each sensor to be distinguished based on round-trip transit time.

76. 发明申请

US20180238680A1 SENSITIVE OPTICAL FIBER SHAPE SENSING BASED ON SHAPE-RELATED OPTICAL POLARIZATION EVOLUTION 审中-公开
公开(公告)号：US20180238680A1
公开(公告)日：2018-08-23
申请号：US15902998
申请日：2018-02-22
申请人： General Photonics Corporation
发明人： Anton Khomenko , Xiaotian Steve Yao , Xiaojun James Chen
IPC分类号： G01B11/24 , G01M11/00
CPC分类号： G01B11/2441 , G01M11/088 , G01M11/3136 , G01M11/3172
摘要： This patent document discloses fiber sensing techniques and devices for shape monitoring by using single- and multi-core optical fiber implementations and optical interferometry. Implementations can be made based on coherent optical time domain reflectometry (OTDR) or optical frequency domain reflectometry (OFDR).

77. 发明授权

US09673895B2 PON supervision using OTDR measurements 有权
公开(公告)号：US09673895B2
公开(公告)日：2017-06-06
申请号：US14240590
申请日：2011-08-24
申请人： Patryk Urban , Gemma Vall-Ilosera
发明人： Patryk Urban , Gemma Vall-Ilosera
IPC分类号： H04B10/071 , G01M11/00 , H04L12/44
CPC分类号： H04B10/071 , G01M11/3127 , G01M11/3136 , H04L12/44 , H04L2012/445
摘要： A Wavelength Adaptation Module and a method therein for adapting an Optical Time Domain Reflectometry, OTDR, signal for supervision of Optical Network Terminals, ONTs, in a Passive Optical Network, PON, are provided. The wavelength of the OTDR signal is adapted to have a selected wavelength to enable a splitter in a remote node to forward the OTDR signal to a dedicated group of ONTs in the PON, thereby supervising the fiber links between the remote node and the dedicated group of ONTs. Likewise, a remote node and a method therein for receiving an OTDR signal having a pre-selected wavelength from the Wavelength Adaptation Module and for outputting the OTDR signal to a dedicated group of ONTs with regards to the pre-selected wavelength of the received OTDR signal are provided.

78. 发明申请

US20170085317A1 MULTIMODE LAUNCH SYSTEMS FOR USE IN PERFORMING AN OTDR MEASUREMENT ON A MULTI-FIBER ARRAY DUT AND METHOD OF PERFORMING SAME 有权
公开(公告)号：US20170085317A1
公开(公告)日：2017-03-23
申请号：US15263036
申请日：2016-09-12
申请人： EXFO INC.
发明人： Bernard Ruchet
IPC分类号： H04B10/071 , H04B10/2581
CPC分类号： H04B10/071 , G01M11/3136 , G01M11/3154 , G02B6/14 , H04B10/2581
摘要： A multimode launch system to be connected to an Optical Time-Domain Reflectometer (OTDR) for use in performing at least one OTDR measurement on a multi-fiber array Device Under Test (DUT), the multimode launch system comprising: an optical switch being connectable to the OTDR during use; a launch array device having an end being connectable to the optical switch and another end being connectable to the multi-fiber array DUT during use, the launch array device having a plurality of multimode launch optical fibers each having at least one first guidance parameter being smaller than a corresponding one of at least one second guidance parameter of at least one multimode optical fiber of the optical switch; and a multi-fiber mode conditioner along the launch array device for inducing a preferential attenuation of higher-order optical modes of test light propagated into the multi-fiber array DUT during use.

79. 发明授权

US09548810B2 Optical path processing method and apparatus 有权
标题翻译：光路处理方法及装置
公开(公告)号：US09548810B2
公开(公告)日：2017-01-17
申请号：US14839477
申请日：2015-08-28
申请人： Huawei Technologies Co., Ltd.
发明人： Xishe Liu , Shijun Wang , Heyuan Liu , Zhiyong Xiao
IPC分类号： H04B10/00 , H04B10/071 , G01M11/00 , H04J14/02 , H04Q11/00 , H04J14/00 , G02B6/293 , G02B3/04
CPC分类号： H04B10/071 , G01M11/3136 , G02B3/04 , G02B6/29304 , H04J14/0227 , H04Q11/0005 , H04Q11/0067 , H04Q2011/0016 , H04Q2011/0083
摘要： The present invention provides an optical path processing method and apparatus. The apparatus includes an FA, an LA, an aspheric lens, a filter, and a reflector, where the FA includes a test optical channel, where the test optical channel is configured to receive test light, and enable the test light to be incident through the LA and the aspheric lens to a surface of the filter; the filter is located between the aspheric lens and the reflector, and is configured to perform transmission on the test light; and the reflector is at a distance of less than or equal to a first preset value away from a focus of light transmitted through the aspheric lens, and is configured to reflect, at a preset angle, the test light transmitted through the filter to a specular surface of the reflector.
摘要翻译：本发明提供一种光路处理方法和装置。该装置包括FA，LA，非球面透镜，滤光器和反射器，其中FA包括测试光通道，其中测试光通道被配置为接收测试光，并且使测试光能够通过 LA和非球面透镜到过滤器的表面; 所述过滤器位于所述非球面透镜与所述反射体之间，并被配置为在所述测试光上进行透射; 并且反射器处于远离透过非球面透镜的光的焦点小于或等于第一预设值的距离，并且被配置为以预定角度将透过滤光器的测试光反射到镜面反射镜表面。

80. 发明申请

US20160356670A1 SYSTEM AND METHOD FOR CERTIFICATION OF PHYSICAL PARAMETERS OF COMMUNICATION LINKS 审中-公开
标题翻译：用于认证通信链路物理参数的系统和方法
公开(公告)号：US20160356670A1
公开(公告)日：2016-12-08
申请号：US14731004
申请日：2015-06-04
申请人： Fluke Corporation
发明人： Theodore J. Brillhart , J. David Schell
IPC分类号： G01M11/00
CPC分类号： G01M11/3136 , G01M11/3145 , G01M11/33 , H04B10/071 , H04B10/0731 , H04B10/07955
摘要： A system for certifying physical parameters of fiber optic cabling may include a test device coupled to an end of a fiber optic cable. The test device injects light into the fiber optic cable and conducts a certification test of physical parameters of the fiber optic cable. Based on observation of interaction of the injected light with the fiber optic cable, the test device tests one or more physical parameters of the cable and certifies whether the tested parameters satisfy corresponding parameters specified by a predetermined standard. A separate device may communicate a control signal (e.g., wirelessly) to the test device for controlling an operation of the certification test. The separate device is further operable to receive a result of the certification test from the test device. The separate device may further communicate with a remote computing device updates a database element with information regarding the certification test.
摘要翻译：用于认证光纤布线的物理参数的系统可以包括耦合到光纤电缆的端部的测试设备。测试设备将光线注入光纤电缆，并对光纤电缆的物理参数进行认证测试。基于观察注入光与光纤电缆的相互作用，测试装置测试电缆的一个或多个物理参数，并证实测试参数是否满足预定标准规定的相应参数。单独的设备可以将控制信号（例如，无线地）传送到测试设备，以控制认证测试的操作。分离的设备还可操作以从测试设备接收认证测试的结果。单独的设备可以进一步与远程计算设备进行通信，使用关于认证测试的信息更新数据库元素。

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