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1. 发明申请

WO2013130771A1 OPTICAL BRILLOUIN SENSING SYSTEMS 审中-公开
标题翻译：光学感光系统
公开(公告)号：WO2013130771A1
公开(公告)日：2013-09-06
申请号：PCT/US2013/028268
申请日：2013-02-28
申请人： CORNING INCORPORATED , LI, Ming-Jun , LI, Shenping , VODHANEL, Richard Stephen
发明人： LI, Ming-Jun , LI, Shenping , VODHANEL, Richard Stephen
IPC分类号： G01D5/353
CPC分类号： G01M5/0091 , G01D5/35364 , G01K11/32
摘要： According to one embodiment, an optical sensing system may include a gated optical amplifier, one or more triggering devices, and an optical coupler. The gated optical amplifier can receive a pulse signal and transform the pulse signal into an amplified pulse signal having an amplified peak portion. The triggering devices can control the gated optical amplifier such that the gated optical amplifier is in the lossy state while the baseline portion of the pulse signal is transformed and the gated optical amplifier is in the gain state while the peak portion of the pulse signal is transformed. The amplified pulse signal can be transmitted to the sensing optical fiber and a sensed optical signal can be received, when the sensing optical fiber is connected to the optical coupler. Optionally, a second pulse signal and the sensed optical signal can be combined and detected with a coherent balanced detection technique.
摘要翻译：根据一个实施例，光学感测系统可以包括门控光放大器，一个或多个触发装置和光耦合器。门控光放大器可以接收脉冲信号并将脉冲信号转换成具有放大峰值部分的放大脉冲信号。触发装置可以控制门控光放大器，使得门控光放大器处于损耗状态，而脉冲信号的基线部分被变换，并且门控光放大器处于增益状态，同时脉冲信号的峰值部分被变换。当感测光纤连接到光耦合器时，放大的脉冲信号可以传输到感测光纤并且可以接收感测的光信号。可选地，可以用相干平衡检测技术组合并检测第二脉冲信号和感测到的光信号。

2. 发明申请

WO2013126383A1 SENSING SYSTEMS AND FEW-MODE OPTICAL FIBER FOR USE IN SUCH SYSTEMS 审中-公开
标题翻译：感应系统和用于此类系统的光纤光纤
公开(公告)号：WO2013126383A1
公开(公告)日：2013-08-29
申请号：PCT/US2013/026825
申请日：2013-02-20
申请人： CORNING INCORPORATED , LI, Ming-Jun , LI, Shenping
发明人： LI, Ming-Jun , LI, Shenping
IPC分类号： G01D5/353 , G01K11/32 , G01L1/24 , G02B6/02
CPC分类号： G01K11/32 , G01D5/35364 , G01L1/246 , G02B6/02009 , G02B6/03611
摘要： A sensing optical fiber comprising: a few-moded multi-segment core, said core comprising one core segment surrounded by another core segment, and at least one cladding surrounding said core; said core having an F factor (μm 2 ) of 100 μm 2 to 350 μm 2 , and is constructed to provide (i) an overlap integral between the fundamental optical guided mode and the fundamental acoustic guided mode of greater than 0.7 and (ii) the overlap integral between the LP11 optical guided mode and the fundamental acoustic guided mode at least 0.45.
摘要翻译：一种感测光纤，包括：多模多芯芯，所述芯包括由另一芯部段包围的一个芯部段和围绕所述芯的至少一个包层; 所述芯具有100m2到350mum2的F因子（mum2），并且被构造成提供（i）基本光学引导模式和基本声导引模式之间的重叠积分大于0.7，以及（ii）重叠积分在LP11光导模式和基本声导模之间至少为0.45。

3. 发明申请

WO2013126254A1 MODE DELAY MANAGED FEW MODED OPTICAL FIBER LINK 审中-公开
标题翻译：模式延迟管理的模拟光纤链接
公开(公告)号：WO2013126254A1
公开(公告)日：2013-08-29
申请号：PCT/US2013/025880
申请日：2013-02-13
申请人： CORNING INCORPORATED , BICKHAM, Scott Robertson , LI, Ming-Jun , LI, Shenping , TEN, Sergey Yurevich
发明人： BICKHAM, Scott Robertson , LI, Ming-Jun , LI, Shenping , TEN, Sergey Yurevich
IPC分类号： G02B6/02 , G02B6/26 , H04B10/2581 , H04J14/04
CPC分类号： H04J14/04 , G02B6/02019 , G02B6/02023 , G02B6/02214 , G02B6/0281 , G02B6/0288 , G02B6/0365 , G02B6/268 , H04B10/2581 , H04J14/02
摘要： An optical fiber link suitable for use in a mode division multiplexing (MDM) optical transmission system is disclosed. The link has a first optical fiber having a core which supports the propagation and transmission of an optical signal with X LP modes at a wavelength of 1550 nm, wherein X is an integer greater than 1 and less than or equal to 20, the first fiber having a positive differential mode group delay between the LP01 and LP11 modes at a wavelength between 1530-1570. The link also has a second optical fiber having a core which supports the propagation and transmission of an optical signal with Y LP modes at a wavelength of 1550 nm, wherein Y is an integer greater than 1 and less than or equal to 20, said optical fiber having a negative differential mode group delay between the LP01 and LP11 modes at a wavelength between 1530-1570.
摘要翻译：公开了适用于模分多路复用（MDM）光传输系统的光纤链路。该链路具有第一光纤，其具有支持在1550nm的波长下具有X LP模式的光信号的传播和传输的核心，其中X是大于1且小于等于20的整数，第一光纤在1530-1570之间的波长在LP01和LP11模式之间具有正差分模式组延迟。该链路还具有第二光纤，其具有支持在1550nm的波长下具有Y LP模式的光信号的传播和传输的核，其中Y是大于1且小于等于20的整数，所述光光纤在1530-1570之间的波长在LP01和LP11模式之间具有负差模模式延迟。

4. 发明申请

WO2014025614A1 TWO-CORE OPTICAL FIBERS FOR DISTRIBUTED FIBER SENSORS AND SYSTEMS 审中-公开
标题翻译：用于分布式光纤传感器和系统的两芯光纤
公开(公告)号：WO2014025614A1
公开(公告)日：2014-02-13
申请号：PCT/US2013/053228
申请日：2013-08-01
申请人： CORNING INCORPORATED , HOOVER, Brett Jason , LI, Ming-Jun , LI, Shenping
发明人： HOOVER, Brett Jason , LI, Ming-Jun , LI, Shenping
IPC分类号： G01J5/08 , G01D5/353 , G01K11/32 , G02B6/02
CPC分类号： G01N21/636 , G01D5/35303 , G01D5/35364 , G01D5/35383 , G01J5/0821 , G01K11/32 , G01K11/3206 , G01K2011/322 , G01L1/242 , G01N2021/638 , G01N2201/088 , G02B6/02042 , G02B6/0281 , G02B6/0365
摘要： A two-core optical fiber is provided for use in Brillouin distributed fiber sensor applications and systems. The two-core fiber includes a first and second core. Each core is configured to exhibit a Brillouin frequency shift greater than 30 Mhz relative to the other core. Further, each core possesses temperature and strain coefficients that differ from the other core. The cores can be configured to produce Brillouin frequency shift levels of at least 30 Mhz relative to one another. These differences in shift levels may be effected by adjustment of the material compositions, doping concentrations and/or refractive index profiles of each of the cores. These optical fibers may also be used in BOTDR- and BOTDA based sensor systems and arrangements.
摘要翻译：提供两芯光纤用于布里渊分布式光纤传感器应用和系统。双芯光纤包括第一和第二芯。每个核心被配置为相对于另一个核心展现大于30Mhz的布里渊频移。此外，每个核心具有不同于另一核心的温度和应变系数。核心可以被配置为相对于彼此产生至少30Mhz的布里渊频移水平。这些偏移水平的差异可以通过调整每个芯的材料组成，掺杂浓度和/或折射率分布来实现。这些光纤也可用于基于BOTDR和BOTDA的传感器系统和布置。

5. 发明申请

WO2012148661A1 DISTRIBUTED BRILLOUIN SENSING SYSTEMS AND METHODS USING FEW-MODE SENSING OPTICAL FIBER 审中-公开
标题翻译：分布式BRILLOUIN感应系统及使用双向感光光纤的方法
公开(公告)号：WO2012148661A1
公开(公告)日：2012-11-01
申请号：PCT/US2012/032952
申请日：2012-04-11
申请人： CORNING INCORPORATED , LI, Ming-Jun , LI, Shenping , WANG, Xiaobin
发明人： LI, Ming-Jun , LI, Shenping , WANG, Xiaobin
IPC分类号： G01B11/16
CPC分类号： G01K11/32 , G01L1/246
摘要： Some embodiments of a distributed Brillouin optical fiber sensing system employs a sensing optical fiber that supports two or more (i.e., few) guided modes. Pump light supported by one of the guided modes is used to form a dynamic Brillouin grating (DBG). Probe light supported by at least one of the other guided modes interacts with the DBG to form reflected probe light that is received and analyzed to determine a Brillouin frequency shift, a phase matching wavelength between probe and pump light, a reflection location, which in turn allows for making a measurement of at least one condition along the sensing optical fiber. Supporting the pump and probe light in different guided modes results in the optical fiber sensing system being able to simultaneously measure temperature and strain and having a higher spatial resolution than sensing systems where the pump light and probe light share a common guided mode.
摘要翻译：分布式布里渊光纤感测系统的一些实施例采用支持两个或更多（即少数）导模的传感光纤。由一个引导模式支持的泵浦光用于形成动态布里渊光栅（DBG）。由其他引导模式中的至少一个支撑的探测光与DBG相互作用以形成被接收和分析的反射探测光，以确定布里渊频移，探针与泵浦光之间的相位匹配波长，反射位置允许沿着感测光纤测量至少一个条件。以不同的导向模式支持泵浦和探测光，导致光纤感测系统能够同时测量温度和应变，并且具有比泵浦光和探针光共享共同引导模式的感测系统更高的空间分辨率。

6. 发明公开

EP2987009A1 LOW DIAMETER OPTICAL FIBER 有权
标题翻译：具有低直径的光纤
公开(公告)号：EP2987009A1
公开(公告)日：2016-02-24
申请号：EP14721717.8
申请日：2014-04-08
申请人： Corning Incorporated , Bookbinder, Dana Craig , Dawes, Steven Bruce , Kouzmina, Inna Igorevna , Li, Ming-Jun , Ocampo, Manuela , Tandon, Pushkar
发明人： BOOKBINDER, Dana Craig , DAWES, Steven Bruce , KOUZMINA, Inna Igorevna , LI, Ming-Jun , OCAMPO, Manuela , TANDON, Pushkar
IPC分类号： G02B6/02 , G02B6/036 , C08F222/10
CPC分类号： G02B6/02395 , C08F222/1006 , G02B6/02009 , G02B6/0281 , G02B6/0283 , G02B6/0286 , G02B6/0365
摘要： Small-radius coated optical fibers having large mode field diameter and low bending losses. The coated fiber may have an outer radius of 110 μm or less, while providing a mode field diameter of 9.0 μm or greater and a bending loss when wrapped about a 15 mm mandrel of 0.5 dB/km or less at wavelength of 1550 nm. The coated fiber may have a mode field diameter of 9.2 μm or greater and may have a bending loss at 1550 nm of less than 0.5 dB per turn when wrapped about a 15 mm mandrel, or a bending loss at 1550 nm of 0.25 dB/km or less when wrapped about a 20 mm mandrel, or a bending loss at 1550 nm of 0.02 dB/km or less when wrapped about a 30 mm mandrel. The fibers have a core and a cladding, and a primary coating surrounding the cladding and a secondary coating surrounding the primary coating. The primary coating has an in situ modulus of 0.50 MPa or less, and the secondary coating has an in situ modulus of 1500 MPa or greater.

7. 发明申请

WO2013115755A1 METHOD OF MAKING A MULTIMODE OPTICAL FIBER 审中-公开
标题翻译：制造多模光纤的方法
公开(公告)号：WO2013115755A1
公开(公告)日：2013-08-08
申请号：PCT/US2011/066386
申请日：2011-12-21
申请人： CORNING INCORPORATED , BICKHAM, Scott R. , KOGAN, Oleksandr , LI, Ming-Jun , MISHRA, Snigdharaj K. , TANDON, Pushkar
发明人： BICKHAM, Scott R. , KOGAN, Oleksandr , LI, Ming-Jun , MISHRA, Snigdharaj K. , TANDON, Pushkar
IPC分类号： G02B6/028 , C03B37/014 , C03B37/027
CPC分类号： C03B37/01413 , C03B37/0253 , C03B2201/12 , C03B2201/28 , C03B2201/31 , C03B2201/32 , C03B2203/23 , C03B2203/26 , C03B2205/40 , G02B6/0288 , Y02P40/57
摘要： A method of making a multimode optical fiber is disclosed. In one embodiment the method includes calculating a core radius that maximizes the bandwidth of the multimode optical fiber wherein the effect of draw tension is accounted for. The embodiments herein illustrate how core radius can be tuned so the time delay of the outermost guided mode group is reduced. The resultant core radius may be targeted for a value off-nominal from what would be expected for a particular commercial optical fiber type.
摘要翻译：公开了制造多模光纤的方法。在一个实施例中，该方法包括计算最大化多模光纤的带宽的纤芯半径，其中考虑拉伸张力的影响。这里的实施例示出了如何调整芯部半径，使得最外面的引导模式组的时间延迟减小。所得到的芯部半径可以针对特定商业光纤类型预期的非标称值。

8. 发明申请

WO2013082217A1 LOW BEND LOSS OPTICAL FIBER 审中-公开
标题翻译：低弯损失光纤
公开(公告)号：WO2013082217A1
公开(公告)日：2013-06-06
申请号：PCT/US2012/066949
申请日：2012-11-29
申请人： CORNING INCORPORATED , BERKEY, George Edward , BOOKBINDER, Dana Craig , DAWES, Steven Bruce , LI, Ming-Jun , TANDON, Pushkar , WANG, Ji
发明人： BERKEY, George Edward , BOOKBINDER, Dana Craig , DAWES, Steven Bruce , LI, Ming-Jun , TANDON, Pushkar , WANG, Ji
IPC分类号： G02B6/036 , G02B6/028
CPC分类号： G02B6/028 , G02B6/0286 , G02B6/03627 , G02B6/03638 , G02B6/0365
摘要： According to some embodiments a single mode fiber includes: a germania doped central core region having outer radius r 1 and relative refractive index Δ 1 ; and a cladding region comprising (i) a first inner cladding region having an outer radius r 2 > 6 microns and relative refractive index Δ 2 and 0.3≤r 1 /r 2 ≤0.85; and (ii) a second inner cladding region having an outer radius r 3 > 9 microns and comprising a minimum relative refractive index Δ 3 , wherein said second inner cladding region has at least one region with a relative refractive index delta that becomes more negative with increasing radius; and (iii) an outer cladding region surrounding the inner cladding region and comprising relative refractive index Δ 4 , wherein Δ 1 > Δ 2 > Δ 3 , Δ 3 4 .
摘要翻译：根据一些实施例，单模光纤包括：具有外半径r1和相对折射率Delta1的掺杂锗的中心核心区域; 包括区域，包括（i）具有外半径r2> 6微米和相对折射率Δ2和0.3 <= r1 / r2 <= 0.85的第一内包层区域; 和（ii）外半径r3> 9微米并且包括最小相对折射率Delta3的第二内包层区域，其中所述第二内包层区域具有至少一个具有随着半径增加而变得更负的相对折射率Δ的区域 ; 和（iii）围绕内部包层区域的外包层区域，并且包括相对折射率Delta4，其中Delta1> Delta2> Delta3，Delta3Δ4。

9. 发明申请

WO2013028439A1 METHOD FOR PRODUCING OPTICAL FIBER HAVING CONTROLLED INDEX PERTURBATIONS 审中-公开
标题翻译：用于生产具有控制指数刺激的光纤的方法
公开(公告)号：WO2013028439A1
公开(公告)日：2013-02-28
申请号：PCT/US2012/051016
申请日：2012-08-16
申请人： CORNING INCORPORATED , CHEN, Xin , LAING, Charles Frederick , LI, Ming-Jun , LIU, Anping , MOZDY, Eric John , THALER, Joseph D
发明人： CHEN, Xin , LAING, Charles Frederick , LI, Ming-Jun , LIU, Anping , MOZDY, Eric John , THALER, Joseph D
IPC分类号： C03B37/027
CPC分类号： C03B37/02745 , C03B37/02763 , C03B2203/06 , C03B2203/18 , C03B2203/20 , Y02P40/57
摘要： A method for producing an optical fiber is provided. The method includes the steps of drawing an optical fiber from a heated glass source in a furnace and introducing index perturbations to the optical fiber via a plurality of perturbation sources arranged at a plurality of different azimuthal locations. The index perturbations are introduced synchronously at different locations along the axial length of the fiber by the plurality of perturbation sources in a generally helical pattern on the outside surface of the fiber in one embodiment. According to another embodiment, the index perturbations are introduced by the plurality of perturbation sources at different frequencies.
摘要翻译：提供一种光纤的制造方法。该方法包括以下步骤：在炉中从加热的玻璃源中拉出光纤，并且通过布置在多个不同方位位置处的多个扰动源将折射率扰动引入光纤。在一个实施例中，通过多个扰动源以纤维的外表面上的大致螺旋图案沿着纤维的轴向长度在不同位置同时引入折射率扰动。根据另一个实施例，索引扰动由多个扰动源以不同的频率引入。

10. 发明申请

WO2013028423A1 METHOD OF MAKING MULTIMODE OPTICAL FIBERS 审中-公开
标题翻译：制造多模光纤的方法
公开(公告)号：WO2013028423A1
公开(公告)日：2013-02-28
申请号：PCT/US2012/050889
申请日：2012-08-15
申请人： CORNING INCORPORATED , LI, Ming-Jun
发明人： LI, Ming-Jun
IPC分类号： G02B6/028
CPC分类号： G02B6/0288
摘要： A multimode optical fiber is drawn form an optical fiber preform, and during said drawing step, a series of perturbations are imparted to the fiber along the length of the optical fiber, said perturbations exhibiting a non-constant amplitude or repeat period.
摘要翻译：多模光纤被拉制成光纤预制棒，并且在所述拉伸步骤期间，沿着光纤的长度向纤维施加一系列扰动，所述扰动表现出非恒定振幅或重复周期。

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