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公开(公告)号：US08977095B2
公开(公告)日：2015-03-10
申请号：US14034758
申请日：2013-09-24
Applicant: Corning Incorporated
Inventor： Brett Jason Hoover , Valery A Kozlov , Ming-Jun Li
CPC classification number: G02B6/024
Abstract: Polarization maintaining optical fibers and methods for making the same are disclosed herein. According to one embodiment, a polarization maintaining optical fiber includes a cladding portion and a core portion disposed in the cladding portion. The core portion includes a first core region having a first coefficient of thermal expansion CTE1 and a second core region having a second coefficient of thermal expansion CTE2. The first coefficient of thermal expansion CTE1 is not equal to the second coefficient of thermal expansion CTE2. At least one of the first core region and the second core region is non-circular symmetric with respect to a centerline of the polarization maintaining optical fiber.
Abstract translation: 本文公开了维持光纤的极化保持及其制造方法。 根据一个实施例，偏振保持光纤包括设置在包层部分中的包层部分和芯部分。 芯部包括具有第一热膨胀系数CTE1的第一芯区域和具有第二热膨胀系数CTE2的第二芯区域。 第一热膨胀系数CTE1不等于第二热膨胀系数CTE2。 第一芯区域和第二芯区域中的至少一个相对于偏振保持光纤的中心线是非圆对称的。
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公开(公告)号：US10317255B2
公开(公告)日：2019-06-11
申请号：US15873459
申请日：2018-01-17
Applicant: Corning Incorporated
Inventor： Anthony Artuso , Valery A Kozlov , Ming-Jun Li
Abstract: According to some embodiments a fiber sensor comprises: —an optical fiber configured for operation at a wavelength from about 300 nm to about 2000 nm, and further defined by a transmission end, another end, a fiber outer diameter and a fiber length, the fiber comprising: (a) a hybrid core comprising a single mode core portion and a multi-mode core portion; and (b) a cladding surrounding the hybrid core.
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3.发明授权公开(公告)号：US10663326B2
公开(公告)日：2020-05-26
申请号：US16047582
申请日：2018-07-27
Applicant: Corning Incorporated
Inventor： Anthony Artuso , Valery A Kozlov , Ming-Jun Li
IPC: G02B6/10 , G01D5/353 , C03B37/018 , C03B37/025 , C03C3/06 , C03B37/014 , C03C14/00 , C03C13/04 , C03B37/027
Abstract: A fiber sensor includes an optical fiber configured for operation at a wavelength from about 800 nm to about 1600 nm. The optical fiber includes a cladding that is defined by a fiber outer diameter and a core that is surrounded by the cladding. The core of the optical fiber has a Rayleigh scattering coefficient, αs, that is controlled by controlling a concentration of one or more dopants in the core. The Rayleigh scattering coefficient is tuned to be within a predetermined range of an optimum Rayleigh scattering coefficient for a given total length, L, of the optical fiber. The predetermined range is from about 70% of the optimum αs to about 130% of the optimum αs.
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公开(公告)号：US10302463B2
公开(公告)日：2019-05-28
申请号：US15192114
申请日：2016-06-24
Applicant: Corning Incorporated
Inventor： Valery A Kozlov , Ming-Jun Li
Abstract: A fiber sensor that includes: an optical fiber configured for one of single or few mode operation at a wavelength from about 300 nm to about 2000 nm, and further defined by a transmission end, a scattering end, a fiber outer diameter and a fiber length from about 10 m to about 100 km. The fiber includes: a plurality of cores having equivalent core diameters and compositions; and a cladding defined by the fiber outer diameter and surrounding the cores. The fiber is tapered at the transmission end to define a tapered portion characterized by a tapered fiber out diameter and tapered core diameters smaller than the respective fiber outer diameter and core diameters. Further, the transmission end of the fiber exhibits a total backscattered signal that emanates from the cores after light from a single source has been injected into the cores at the transmission end of the fiber.
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