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    OPTICAL GAIN FIBERS
    1.
    发明申请
    OPTICAL GAIN FIBERS 审中-公开
    光学增益纤维

    公开(公告)号：WO0144837B1

    公开(公告)日：2002-01-03

    申请号：PCT/US0029215

    申请日：2000-10-23

    Applicant: CORNING INC

    Inventor： CHU POLLY W ,  ELLISON ADAM J G ,  GOFORTH DOUGLAS E ,  HAWTOF DANIEL W ,  WHALEN JOSEPH M

    IPC: G02B6/00 ,  C03C3/095 ,  C03C13/04 ,  H01S3/06 ,  H01S3/067 ,  H01S3/10 ,  H01S3/16 ,  H01S3/17 ,  G02B6/26

    CPC classification number: C03C3/06 ,  C03C3/083 ,  H01S3/06716 ,  H01S3/06754 ,  H01S3/1601 ,  H01S2301/04

    Abstract: Disclosed are optical gain fibers which include an erbium-containing core and a cladding surrounding the core and which have ripple of less than about 25 % over about a 40 nm wide window or ripple of less than about 15 % over about a 32 nm wide window, or both. In one embodiment, the optical gain fibers are pumpable at 980 nm and at 1480 nm. In another embodiment, the optical gain fibers are fusion sliceable. In yet another embodiment, the core includes oxides erbium; the cladding includes silicon dioxide; and the optical gain fiber has a passive loss of less than about 0.5 % of the peak absorption of the erbium absorption band in the vicinity of 1530 nm. The optical gain fibers of the present invention have a wider gain window, improved flatness across the gain window, and/or increased gain as compared to conventional optical gain fibers. Accordingly, they are useful in amplifying optical signals, particularly signals which need to be repeatedly amplified over the course of a long-haul transmission, without losses in the signal quality that are commonly encountered in conventional optical signal amplifying methods.

    Abstract translation: 公开了一种光增益光纤，其包括含铒的芯和围绕芯的包层，并且在大约40nm宽的窗口上具有小于约25％的波纹或在约32nm宽的窗口上具有小于约15％的纹波 ， 或两者。 在一个实施例中，光增益光纤在980nm和1480nm可泵浦。 在另一个实施例中，光增益光纤是可熔切割的。 在另一个实施方案中，芯包括氧化物铒; 包层包括二氧化硅; 并且光增益光纤具有小于1530nm附近的铒吸收带的峰值吸收的约0.5％的被动损耗。 与常规光增益光纤相比，本发明的光增益光纤具有更宽的增益窗口，改善增益窗上的平坦度和/或增益增益。 因此，它们可用于放大光信号，特别是在长距离传输过程中需要重复放大的信号，而不会损害传统光信号放大方法中常见的信号质量。

    A PROCESS FOR DRAWING OPTICAL FIBER FROM A MULTIPLE CRUCIBLE APPARATUS
    5.
    发明申请
    A PROCESS FOR DRAWING OPTICAL FIBER FROM A MULTIPLE CRUCIBLE APPARATUS 审中-公开
    一种用于从多种可变装置绘制光纤的方法

    公开(公告)号：WO0220418A2

    公开(公告)日：2002-03-14

    申请号：PCT/US0120277

    申请日：2001-06-26

    Applicant: CORNING INC

    Inventor： ANDERSON JAMES G ,  BRAND ERNEST E ,  ELLISON ADAM J G ,  TRENTELMAN JACKSON P

    IPC: G02B6/00 ,  C03B37/023 ,  C03C13/04 ,  C03B37/02

    CPC classification number: C03B37/023 ,  C03B2201/30 ,  C03C13/046

    Abstract: The disclosed invention includes a method of making an optical fiber drawn from a multiple crucible. The method includes moving a first crucible of the multiple crucible relative to a second crucible of the multiple crucible. The invention also includes minimizing core and cladding diffusion. A tip of the first crucible is disposed axially above a tip of the second crucible by a preselected distance. The invention further includes the ability to alter a diameter of the core of the fiber. A differential pressure is applied to the first crucible. A positive differential pressure is applied to increase the core diameter. A negative differential pressure is applied to decrease the core diameter. Furthermore, the invention includes drawing the fiber under non-isothermal conditions.

    Abstract translation: 所公开的发明包括制造从多个坩埚拉制的光纤的方法。 该方法包括相对于多个坩埚的第二坩埚移动多个坩埚的第一坩埚。 本发明还包括使芯和包层扩散最小化。 第一坩埚的尖端以预定的距离轴向设置在第二坩埚的尖端上方。 本发明还包括改变纤维芯的直径的能力。 对第一坩埚施加差压。 施加正的差压以增加芯径。 施加负差压以减小芯径。 此外，本发明包括在非等温条件下拉伸纤维。

    OPTICAL GAIN FIBERS
    6.
    发明申请
    OPTICAL GAIN FIBERS 审中-公开
    光学增益纤维

    公开(公告)号：WO0144837A3

    公开(公告)日：2001-11-15

    申请号：PCT/US0029215

    申请日：2000-10-23

    Applicant: CORNING INC

    Inventor： CHU POLLY W ,  ELLISON ADAM J G ,  GOFORTH DOUGLAS E ,  HAWTOF DANIEL W ,  WHALEN JOSEPH M

    IPC: G02B6/00 ,  C03C3/095 ,  C03C13/04 ,  H01S3/06 ,  H01S3/067 ,  H01S3/10 ,  H01S3/16 ,  H01S3/17 ,  G02B6/26

    CPC classification number: C03C3/06 ,  C03C3/083 ,  H01S3/06716 ,  H01S3/06754 ,  H01S3/1601 ,  H01S2301/04

    Abstract: Disclosed are optical gain fibers which include an erbium-containing core and a cladding surrounding the core and which have ripple of less than about 25 % over about a 40 nm wide window or ripple of less than about 15 % over about a 32 nm wide window, or both. In one embodiment, the optical gain fibers are pumpable at 980 nm and at 1480 nm. In another embodiment, the optical gain fibers are fusion sliceable. In yet another embodiment, the core includes oxides erbium; the cladding includes silicon dioxide; and the optical gain fiber has a passive loss of less than about 0.5 % of the peak absorption of the erbium absorption band in the vicinity of 1530 nm. The optical gain fibers of the present invention have a wider gain window, improved flatness across the gain window, and/or increased gain as compared to conventional optical gain fibers. Accordingly, they are useful in amplifying optical signals, particularly signals which need to be repeatedly amplified over the course of a long-haul transmission, without losses in the signal quality that are commonly encountered in conventional optical signal amplifying methods.

    Abstract translation: 公开了一种光增益光纤，其包括含铒的芯和围绕芯的包层，并且在大约40nm宽的窗口上具有小于约25％的波纹或在约32nm宽的窗口上具有小于约15％的纹波 ， 或两者。 在一个实施例中，光增益光纤可在980nm和1480nm泵浦。 在另一个实施例中，光增益光纤是可熔切割的。 在另一个实施方案中，芯包括氧化物铒; 包层包括二氧化硅; 并且光增益光纤具有小于1530nm附近的铒吸收带的峰值吸收的约0.5％的被动损耗。 与常规光增益光纤相比，本发明的光增益光纤具有更宽的增益窗口，改善增益窗上的平坦度和/或增益增益。 因此，它们在放大光信号方面是有用的，特别是在长距离传输过程中需要重复放大的信号，而在传统的光信号放大方法中通常遇到的信号质量没有损失。

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