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11. 发明申请

WO2013036945A1 ARRANGEMENT FOR DEPLOYING CO-EXISTING GPON AND XGPON OPTICAL COMMUNICATION SYSTEMS 审中-公开
标题翻译：配置共存GPON和XGPON光通信系统的安排
公开(公告)号：WO2013036945A1
公开(公告)日：2013-03-14
申请号：PCT/US2012/054487
申请日：2012-09-10
申请人： OFS FITEL, LLC , ZHU, Benyuan
发明人： ZHU, Benyuan
IPC分类号： H04J14/06
CPC分类号： H04Q11/0067 , H04B10/2503 , H04J14/0227 , H04J14/0246 , H04J14/0247 , H04J14/025 , H04J14/0252 , H04J14/0282 , H04Q2011/0086
摘要： A passive, coexisting 10 Gb/s passive optical network (XGPON) and Gb/s passive optical network (GPON) is created by using a pair of counter-propagating laser pump sources at a network-based optical line terminal, in combination with a feeder fiber, to create distributed Raman amplification for the upstream signals associated with both GPON and XGPON systems. A passive remote node is located at the opposite end of the feeder fiber, in the vicinity of a group of end-user locations, and includes a cyclic WDM and a pair of power splitters for the GPON and XGPON signals such that the GPON signals are thereafter directed through a first power splitter into optical network units (ONUs) specifically configured for GPON wavelengths and XGPON signals are directed through a second power splitter into ONUs configured for the XGPON wavelengths.
摘要翻译：通过在基于网络的光线路终端上使用一对反向传播的激光泵源，创建了一个被动的，共存的10 Gb / s无源光网络（XGPON）和Gb / s无源光网络（GPON），并结合为与GPON和XGPON系统相关的上行信号创建分布式拉曼放大器。无源远程节点位于馈线光纤的相对端，位于一组最终用户位置附近，并且包括用于GPON和XGPON信号的循环WDM和一对功率分配器，使得GPON信号为之后通过第一功率分配器引导到专门配置用于GPON波长的光网络单元（ONU），并且XGPON信号通过第二功率分配器引导到为XGPON波长配置的ONU。

12. 发明申请

WO2013131085A1 TDM-AND WDM-BASED FBG SENSOR ARRAY SYSTEM 审中-公开
标题翻译：基于TDM和WDM的FBG传感器阵列系统
公开(公告)号：WO2013131085A1
公开(公告)日：2013-09-06
申请号：PCT/US2013/028871
申请日：2013-03-04
申请人： OFS FITEL, LLC
发明人： HOLLAND, William, R. , LI, Yaowen , NICHOLSON, Jeffrey, W. , SUN, Yingzhi , ZHU, Benyuan
IPC分类号： G01K11/32
CPC分类号： G01D5/35364 , G01K11/32
摘要： In a TDM- and WDM-based FBG sensor array system, a source emits a light covering a selected wavelength range. The light is amplified and then used to generate a series of pulses that are fed into an array of sensor gratings. The propagation of a pulse through the sensor array results in a time-domain-multiplexed output, comprising a series of output pulses in which each output pulse comprises a reflection of the input pulse at a respective grating in the sensor array. Raman amplification is used to amplify both the pulse input into and the time-domain multiplexed output from the sensor array, which is then coupled into an output processing stage for receiving the sensor output and for reconstructing the wavelength output of each grating in the sensor array. The wavelength change for each grating is then used to calculate a physical parameter(s) to be measured, such as temperature and/or strain.
摘要翻译：在基于TDM和WDM的FBG传感器阵列系统中，源发射覆盖所选波长范围的光。光被放大，然后用于产生馈送到传感器光栅阵列中的一系列脉冲。脉冲传播通过传感器阵列导致时域多路复用输出，其包括一系列输出脉冲，其中每个输出脉冲包括传感器阵列中相应光栅处的输入脉冲的反射。拉曼放大用于放大来自传感器阵列的脉冲输入和时域多路复用输出，然后耦合到输出处理级，用于接收传感器输出并重建传感器阵列中每个光栅的波长输出。然后使用每个光栅的波长变化来计算要测量的物理参数，例如温度和/或应变。

13. 发明申请

WO2013090549A3 MULTI-CORE ERBIUM-DOPED FIBER AMPLIFIER 审中-公开
公开(公告)号：WO2013090549A3
公开(公告)日：2013-06-20
申请号：PCT/US2012/069470
申请日：2012-12-13
申请人： OFS FITEL, LLC
发明人： ZHU, Benyuan
IPC分类号： G02B6/036
摘要： A double-clad (DC) multicore (MC) Erbium-doped fiber amplifier (EDFA) for dense- wavelength-division multiplexing (DWDM) is disclosed. The DC-MC-EDFA comprises a length of DC-MC Erbium-doped fiber (EDF) that is core-matched spliced to a MC tapered signal-pump fiber combiner (TFC). For some embodiments, the optical signals are coupled into the DC-MC-EDF by the MC-TFC, and the pump energy is also coupled into the DC- MC-EDF by the MC-TFC. For some embodiments, the optical signals are also transmitted out of the DC-MC-EDF through the MC-TFC.

14. 发明申请

WO2021034830A1 OPTICAL FIBER AMPLIFIER WITH DISTRIBUTED GAIN FLATTENING 审中-公开
公开(公告)号：WO2021034830A1
公开(公告)日：2021-02-25
申请号：PCT/US2020/046805
申请日：2020-08-18
申请人： OFS FITEL, LLC
发明人： DIGIOVANNI, David, J. , WESTBROOK, Paul, S. , ZHU, Benyuan
IPC分类号： H01S3/067
摘要： An optical fiber amplifier is formed to include a grating structure inscribed within the rare earth-doped gain fiber itself, providing distributed wavelength- dependent filtering (attenuation) and minimizing the need for any type of gain- flattening filter to be used at the output of the amplifier. The grating structure may be of any suitable arrangement that provides the desired loss spectrum, for example, similar to the profile of a prior art discrete GFF. Various types of grating structures that may be used to provide distributed wavelength-dependent filtering along the gain include, but are not limited to, tilted gratings, weak Bragg gratings, long-period grating (LPG), and any suitable combination of these grating structures.

15. 发明申请

WO2020047339A1 WIDE GAIN BANDWIDTH C-BAND OPTICAL FIBER AMPLIFIER 审中-公开
公开(公告)号：WO2020047339A1
公开(公告)日：2020-03-05
申请号：PCT/US2019/048942
申请日：2019-08-29
申请人： OFS FITEL, LLC
发明人： ZHU, Benyuan
IPC分类号： H01S3/067 , H01S3/08 , H01S3/10 , H01S3/16
摘要： A fiber amplifier that is particularly configured to provide gain across a large extent of the C-band spectral range (i.e., a gain bandwidth of at least 42 nm, preferably within the range of 46-48 nm) utilizes a specially-designed discrete Raman amplifier in combination with a high inversion level EDFA to extend the gain bandwidth of a conventional EDFA C-band optical amplifier, while maintaining the gain ripple below an acceptable value. The EDFA provides operation at a highly-inverted level and the specialized discrete Raman amplifier (sDRA) element has particular parameters (dispersion, length, effective area) selected to maintain operation within a "small gain" regime while also extending the long wavelength edge of the gain bandwidth and reducing the gain ripple attributed to the EDFA component.

16. 发明申请

WO2021126674A1 AMPLIFIED HOLLOW CORE FIBER TRANSMISSION 审中-公开
公开(公告)号：WO2021126674A1
公开(公告)日：2021-06-24
申请号：PCT/US2020/064417
申请日：2020-12-11
申请人： OFS FITEL, LLC
发明人： MANGAN, Brian , DIGIOVANNI, David, J. , ZHU, Benyuan
IPC分类号： H04B10/25 , G02B6/02 , H01S3/094 , H04B10/2575 , H04B10/291 , H04J14/02
摘要： An amplified hollow-core fiber (HCF) optical transmission system for low latency communications. The optical transmission system comprises a low-latency amplified HCF cable. The low-latency amplified HCF cable comprises multiple HCF segments (or HCF spans). Between consecutive HCF segments, the system comprises low-latency remote optically pumped amplifiers (ROPAs). Each ROPA comprises a gain fiber, a wavelength division multiplexing (WDM) coupler, and an optical isolator. Preferably, the ROPAs are integrated into the HCF cable. Each ROPA is pumped by a remote optical pump source, which provides pump light to the gain fiber. The gain fiber receives an optical transmission signal from the HCF. The WDM coupler combines the pump light with the optical transmission signal, thereby allowing the gain fiber to amplify the optical transmission signal to an amplified transmission signal. The amplified signal is transmitted to another HCF segment through the optical isolator.

17. 发明公开

EP3844849A1 WIDE GAIN BANDWIDTH C-BAND OPTICAL FIBER AMPLIFIER 审中-公开
公开(公告)号：EP3844849A1
公开(公告)日：2021-07-07
申请号：EP19856350.4
申请日：2019-08-29
申请人： OFS FITEL LLC
发明人： ZHU, Benyuan
IPC分类号： H01S3/067 , H01S3/08 , H01S3/10 , H01S3/16

18. 发明授权

EP2545400B1 MULTICORE FIBERS AND ASSOCIATED STRUCTURES AND TECHNIQUES 有权转让
标题翻译：多色纤维及相关结构和技术
公开(公告)号：EP2545400B1
公开(公告)日：2017-12-06
申请号：EP11754102.9
申请日：2011-03-10
申请人： Ofs Fitel Llc, A Delaware Limited Liability Company
发明人： FINI, John, Michael , TAUNAY, Thierry, Franck , YAN, Man, F. , ZHU, Benyuan
IPC分类号： G02B6/02 , H04J14/02 , G02B6/42 , H04J14/00 , G02B6/036 , H04J14/04
CPC分类号： G02B6/02042 , G02B6/0365 , H04J14/04
摘要： A multicore fiber comprises a plurality of cores extending along the length of a fiber body. Each of the cores is surrounded by a cladding. The plurality of cores and surrounding cladding provide respective index variations, so as to form a respective plurality of waveguides for conducting parallel data transmissions from a first end of the fiber to a second end. The plurality of cores has a cross-sectional geometry in which the plurality of cores is configured in a polygonal array, in which at least some of the cores are positioned at the vertices of the array. The polygonal array is configured such that neighboring cores in the array are separated from each other by a distance that is sufficient to prevent crosstalk therebetween.

19. 发明公开

EP2791719A2 MULTI-CORE ERBIUM-DOPED FIBER AMPLIFIER 有权
标题翻译： MEHRADRIGER ERBIUMDOTIERTERFASERVERSTÄRKER
公开(公告)号：EP2791719A2
公开(公告)日：2014-10-22
申请号：EP12857348.2
申请日：2012-12-13
申请人： OFS Fitel, LLC
发明人： ZHU, Benyuan
IPC分类号： G02B6/028
CPC分类号： H01S3/06737 , G02B6/02042 , G02B6/02338 , G02B6/02347 , G02B6/02357 , G02B6/02371 , H01S3/06754 , H01S3/094003 , H01S3/094007 , H01S3/094011 , H01S3/094019 , H01S3/09408 , H01S3/1608 , H01S3/1618
摘要： A double-clad (DC) multicore (MC) Erbium-doped fiber amplifier (EDFA) for dense- wavelength-division multiplexing (DWDM) is disclosed. The DC-MC-EDFA comprises a length of DC-MC Erbium-doped fiber (EDF) that is core-matched spliced to a MC tapered signal-pump fiber combiner (TFC). For some embodiments, the optical signals are coupled into the DC-MC-EDF by the MC-TFC, and the pump energy is also coupled into the DC- MC-EDF by the MC-TFC. For some embodiments, the optical signals are also transmitted out of the DC-MC-EDF through the MC-TFC.

20. 发明公开

EP4018516A1 OPTICAL FIBER AMPLIFIER WITH DISTRIBUTED GAIN FLATTENING 审中-实审转让
公开(公告)号：EP4018516A1
公开(公告)日：2022-06-29
申请号：EP20853710.0
申请日：2020-08-18
申请人： OFS FITEL LLC
发明人： DIGIOVANNI, David, J. , WESTBROOK, Paul, S. , ZHU, Benyuan
IPC分类号： H01S3/067

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