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    Small-diameter polarization maintaining optical fiber
    6.
    发明授权
    Small-diameter polarization maintaining optical fiber 有权

    公开(公告)号：US09726817B2

    公开(公告)日：2017-08-08

    申请号：US15317398

    申请日：2015-11-03

    申请人： FIBERHOME TELECOMMUNICATION TECHNOLOGIES CO., LTD. ,  Wuhan Fiberhome Ruiguang Technology CO., LTD.

    发明人： Wenyong Luo ,  Zhijian Liu ,  Yili Ke ,  Qi Mo ,  Fuming Hu ,  Qiong Lei ,  Zhiwen Kang ,  Rong Dan ,  Lei Zhao

    IPC分类号： G02B6/36 ,  G02B6/024 ,  G02B6/036 ,  G02F1/01 ,  G02B6/028 ,  G02B6/02

    CPC分类号： G02B6/024 ,  C03B37/01217 ,  C03B2203/31 ,  C03C25/1065 ,  G02B6/02395 ,  G02B6/0286 ,  G02B6/036 ,  G02B6/03688 ,  G02B6/03694 ,  G02F1/0134

    摘要： Disclosed is a small-diameter polarization maintaining optical fiber, which relates to the field of special optical fibers. The small-diameter polarization maintaining optical fiber comprises a quartz optical fiber (5); the periphery thereof is provided with an inner coating (6) and an outer coating (8); the interior of the quartz optical fiber (5) is provided with an optical fiber core layer (1) and a quartz cladding (2); two stress zones (4) are arranged between the optical fiber core layer (1) and the quartz cladding (2); a buffer coating (7) is arranged between the inner coating (6) and the outer coating (8); the periphery of each stress zone (4) is provided with a buffer layer (3) which is concentric with the stress zone (4); when a working wavelength of a small-diameter polarization maintaining optical fiber is 1310 nm, the attenuation thereof reaches less than 0.5 dB/km, and the crosstalk reaches −35 dB/km; and when the working wavelength of the small-diameter polarization maintaining optical fiber is 1550 nm, the attenuation thereof reaches less than 0.4 dB/km, and the crosstalk reaches −30 dB/km. The optical fiber not only has excellent stability characteristics of attenuation and crosstalk, but also has the excellent stability characteristic of long-term operation, and can provide a better optical fiber ring for research on a high-precision optical fiber gyroscope, thereby laying the foundation for the development directions of miniaturization and high precision of the optical fiber gyroscope.

    ELLIPTICAL CLADDING POLARIZATION-MAINTAINING LARGE-MODE-AREA GAIN FIBER
    7.
    发明申请
    ELLIPTICAL CLADDING POLARIZATION-MAINTAINING LARGE-MODE-AREA GAIN FIBER 有权

    公开(公告)号：US20170176675A1

    公开(公告)日：2017-06-22

    申请号：US15125163

    申请日：2015-06-01

    申请人： WUHAN BRIGHTCORE OPTICAL FIBER CO., LTD.

    发明人： Kanxian WEI ,  Rui Liu ,  Xiaotao Hu ,  You Li ,  Jianhua Bao ,  Yunli Li

    IPC分类号： G02B6/036 ,  G02B6/024 ,  G02B6/44

    CPC分类号： G02B6/03688 ,  G02B6/02395 ,  G02B6/024 ,  G02B6/03694 ,  G02B6/4429 ,  H01S3/06712 ,  H01S3/06729 ,  H01S3/06733 ,  H01S3/08022

    摘要： The present invention discloses an elliptical cladding polarization-maintaining large-mode-area gain fiber, structurally comprising a core of the elliptical cladding polarization-maintaining large-mode-area gain fiber, an inner cladding, an elliptical stress layer, a first outer cladding, a second outer cladding and a third outer cladding, wherein the inner cladding surrounds the core; the elliptical stress layer surrounds the inner cladding, and has an elliptical cross-sectional shape; the first outer cladding surrounds the elliptical stress layer; the second outer cladding surrounds the first outer cladding; and the third outer cladding surrounds the second outer cladding. As the birefringence of the elliptical cladding polarization-maintaining fiber is directly proportional to the ellipticity and the deposition of a stress-applying area occurs during the preform rod forming process, procedures of preform drilling and the like are eliminated, and the likelihood of preform contamination is greatly reduced. The optical loss and strength of the fiber can hence be improved, and the entire manufacturing process is simplified. Furthermore, the birefringence and the pump absorption of the fiber can also be improved.

    OPTICAL FIBER INCLUDING A PLURALITY OF SUB-CORE AREAS
    8.
    发明申请
    OPTICAL FIBER INCLUDING A PLURALITY OF SUB-CORE AREAS 审中-公开
    光纤包括多个次级核心区域

    公开(公告)号：US20140376869A1

    公开(公告)日：2014-12-25

    申请号：US14302943

    申请日：2014-06-12

    申请人： Samsung Electronics Co., Ltd.

    发明人： Yeong-Seop LEE ,  Mun-Hyun DO ,  Dae-Seung MOON ,  Si-Ho SONG ,  Dea-Hwan OH ,  Tae-Hyung LEE

    IPC分类号： G02B6/02

    CPC分类号： G02B6/03688 ,  G02B6/023 ,  G02B6/0283 ,  G02B6/03611

    摘要： An optical fiber is provided. The optical fiber includes a core located at the center of the optical fiber and having a maximum refractive index in the optical fiber, and a cladding located at a circumference of the core and having a refractive index lower than that of the core. The core has a structure in which sub-core areas having the refractive index higher than those of adjacent sub-core areas and sub-core areas having the refractive index lower than those of adjacent sub-core areas are alternately repeated.

    摘要翻译： 提供光纤。 光纤包括位于光纤中心并且在光纤中具有最大折射率的芯，以及位于芯的圆周处并具有比芯的折射率低的折射率的包层。 芯具有这样的结构，其中折射率高于相邻子芯区域的折射率的子核心区域和折射率低于相邻子核心区域的折射率的子核心区域交替重复。

    Fiber Designs For Wavelength Tunable Ultra-Short Pulse Lasers
    9.
    发明申请
    Fiber Designs For Wavelength Tunable Ultra-Short Pulse Lasers 有权
    用于波长可调谐超短脉冲激光器的光纤设计

    公开(公告)号：US20140254616A1

    公开(公告)日：2014-09-11

    申请号：US14349269

    申请日：2012-10-09

    申请人： OFS Fitel, LLC

    发明人： Lars Gruner-Nielsen ,  Dan P. Jakobsen ,  Martin E.V. Pedersen ,  Chris Xu ,  Ji Cheng

    IPC分类号： H01S3/067 ,  G02B6/14 ,  G02B6/036

    CPC分类号： H01S3/067 ,  G02B6/03688 ,  G02B6/14 ,  H01S3/0057 ,  H01S3/06716 ,  H01S3/0675 ,  H01S3/0804 ,  H01S2301/085

    摘要： Embodiments of the present invention generally relate to fiber designs for wavelength tunable ultra-short pulse lasers. More specifically, embodiments of the present invention relate to systems incorporating fiber designs for higher order mode fibers capable of soliton self frequency shifting where a system comprises a first fiber for shifting the wavelength from a pump wavelength to a transfer wavelength and a second fiber for shifting the pulse from the transfer wavelength to an output wavelength. In one embodiment of the present invention, a wavelength tunable short pulse fiber laser system comprises: a pulse generator for providing a pulse having an input wavelength; a mode-converter; a first designed fiber for shifting the pulse from the input wavelength to a transfer wavelength; and a second designed fiber for shifting the pulse from the transfer wavelength to an output wavelength.

    摘要翻译： 本发明的实施例一般涉及用于波长可调超短脉冲激光器的光纤设计。 更具体地，本发明的实施例涉及将光纤设计结合到具有能够进行孤子自移频的高阶模式光纤的系统，其中系统包括用于将波长从泵浦波长移位到传输波长的第一光纤和用于移位的第二光纤 从转移波长到输出波长的脉冲。 在本发明的一个实施例中，波长可调短脉冲光纤激光系统包括：脉冲发生器，用于提供具有输入波长的脉冲; 模式转换器 用于将脉冲从输入波长移位到转移波长的第一设计光纤; 以及用于将脉冲从转移波长移位到输出波长的第二设计光纤。