利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

43 条记录 (耗时 0.02 秒)

    Optical gain fibers
    5.
    发明申请
    Optical gain fibers 失效
    光增益光纤

    公开(公告)号：US20020196529A1

    公开(公告)日：2002-12-26

    申请号：US10044027

    申请日：2002-01-10

    发明人： Polly W. Chu ,  Adam J.G. Ellison ,  Douglas E. Goforth ,  Daniel W. Hawtof ,  Joseph M. Whalen

    IPC分类号： H01S003/00

    CPC分类号： C03C3/06 ,  C03C3/083 ,  H01S3/06716 ,  H01S3/06754 ,  H01S3/1601 ,  H01S2301/04

    摘要： 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.

    摘要翻译： 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。

    COMPACT OPTICAL FIBER AMPLIFIER MODULE
    6.
    发明申请
    COMPACT OPTICAL FIBER AMPLIFIER MODULE 失效
    精密光纤放大器模块

    公开(公告)号：US20020191902A1

    公开(公告)日：2002-12-19

    申请号：US09993774

    申请日：2001-11-27

    发明人： Renyuan Gao

    IPC分类号： G02B006/28 ,  G02B006/26

    CPC分类号： H01S3/06754 ,  C03B37/01211 ,  C03B2201/70 ,  G02B6/02 ,  H01S3/063 ,  H01S3/06704 ,  H01S3/06716 ,  H01S3/094003 ,  H01S3/1601 ,  H01S3/1603 ,  H01S3/1608 ,  H01S3/1618 ,  H01S3/175 ,  Y10S372/703

    摘要： An optical fiber amplifier module is disclosed which comprises a signal path located between a signal input and a signal output. A WDM coupler and an amplifying gain medium are disposed along the signal path. A pump laser is disposed out of the signal path in a manner that allows a pump signal from the pump laser to reflect off the WDM coupler and enter the signal path. An embodiment utilizing a second WDM coupler and a second pump laser is also disclosed.

    摘要翻译： 公开了一种光纤放大器模块，其包括位于信号输入端和信号输出端之间的信号路径。 沿着信号路径布置WDM耦合器和放大增益介质。 泵浦激光器以允许来自泵浦激光器的泵浦信号反射离开WDM耦合器并进入信号路径的方式设置在信号路径之外。 还公开了利用第二WDM耦合器和第二泵浦激光器的实施例。

    Optical fiber coupler, a process for fabricating the same and an optical amplifier using the same
    7.
    发明授权
    Optical fiber coupler, a process for fabricating the same and an optical amplifier using the same 失效
    光纤耦合器，其制造方法和使用该光纤耦合器的光放大器

    公开(公告)号：US06406197B1

    公开(公告)日：2002-06-18

    申请号：US09579785

    申请日：2000-05-26

    申请人： Michitaka Okuda ,  Hiromi Ajima ,  Yusuke Takei ,  Hiroshi Fujimoto ,  Kazuyuki Miyake ,  Tatsuhiro Kawamura ,  Yasuhide Sudo

    发明人： Michitaka Okuda ,  Hiromi Ajima ,  Yusuke Takei ,  Hiroshi Fujimoto ,  Kazuyuki Miyake ,  Tatsuhiro Kawamura ,  Yasuhide Sudo

    IPC分类号： G02B6255

    CPC分类号： G02B6/2835 ,  H01S3/06708 ,  H01S3/06754 ,  H01S3/06758 ,  H01S3/1601 ,  H01S3/1603

    摘要： An optical fiber coupler for optical fiber amplifier use in the field of optical communications is provided. The optical fiber coupler comprises: a rare earth-doped fiber as an optical amplifying element; a quasi rare earth-doped fiber for entrance of input signal light; a fused-stretch fiber portion as a multiplexing element which connects a part of the rare earth-doped fiber and a parts the quasi rare earth-doped fiber, wherein the fused-stretch fiber portion formed by stretched a fused mixture of parts of the rare earth-doped fiber and the quasi rare earth-doped fiber; and a single mode fiber which is jointed at a fused joint portion to another shortened rare earth-doped fiber connected to the fused-stretch fiber portion on a side connected by the quasi rare earth-doped fiber. The quasi rare earth-doped fiber has substantially equal propagation constant to the rare earth-doped fiber without substantially containing rare earth elements. The optical fiber coupler is fabricated by the steps of jointing a single mode fiber with a rare earth-doped fiber by fusing abutted end faces of both fibers to form a combined fiber; and fusing parallel contact parts of a quasi rare earth-doped fiber and of the rare earth-doped fiber of the combined fiber and then elongating the fused parts in a desired diameter to form a fused-stretch fiber portion.

    摘要翻译： 提供了一种用于光通信领域的光纤放大器的光纤耦合器。 光纤耦合器包括：作为光放大元件的稀土掺杂光纤; 用于输入信号光入射的准稀土掺杂光纤; 熔融拉伸纤维部分作为将稀土掺杂纤维的一部分与准稀土掺杂纤维部分连接的多路复用元件，其中通过将稀有部分的熔融混合物拉伸而形成的熔融拉伸纤维部分 掺杂稀土的光纤和准稀土掺杂光纤; 以及在熔融接合部分处连接到另一个缩短的稀土掺杂光纤的单模光纤，该稀土掺杂光纤在与稀土掺杂光纤连接的一侧连接到熔融拉伸纤维部分。 准稀土掺杂光纤具有与稀土掺杂光纤基本相等的传播常数，而基本上不含稀土元素。 通过以下步骤制造光纤耦合器：通过将两个光纤的接合端面融合以形成组合光纤，将单模光纤与稀土掺杂光纤接合; 将准稀土掺杂纤维和混合纤维的稀土掺杂纤维的平行接触部分熔合，然后将熔融部分延伸到所需直径以形成熔融拉伸纤维部分。

    P-ELEMENT DOPED LASER MEDIUM APPARATUS AND METHOD
    10.
    发明申请
    P-ELEMENT DOPED LASER MEDIUM APPARATUS AND METHOD 审中-公开
    P元件DOPED激光介质装置和方法

    公开(公告)号：US20130167595A1

    公开(公告)日：2013-07-04

    申请号：US13777472

    申请日：2013-02-26

    申请人： Robert R. ALFANO ,  Alexel Bykov ,  Mikhail Sharonov

    发明人： Robert R. ALFANO ,  Alexel Bykov ,  Mikhail Sharonov

    IPC分类号： C03C4/00

    CPC分类号： C03C4/0071 ,  C03C1/026 ,  C03C3/00 ,  H01S3/06716 ,  H01S3/06741 ,  H01S3/1601 ,  H01S3/17

    摘要： A method for manufacturing a glass composition including a host glass, a 3p component having a concentration of about 5 mole percent to about 10 mole percent, and at least one of a 6p component having a concentration of about 1 mole percent to about 5 mole percent and a 5p component having a concentration of about 1 mole percent to about 5 mole percent, is provided. The method includes heating the host glass to a first predetermined temperature for a first period of time; mixing a powder including the 3p component and the at least one of the 5p component and the 6p component with the heated host glass into a glass/powder mixture; heating the glass/powder mixture to a second predetermined temperature for a second period of time; and cooling, after heating, the glass/powder mixture.

    摘要翻译： 一种制造玻璃组合物的方法，所述玻璃组合物包括主体玻璃，浓度为约5摩尔％至约10摩尔％的3p组分和至少一种浓度为约1摩尔％至约5摩尔％的6p组分 并提供浓度为约1摩尔％至约5摩尔％的5p组分。 该方法包括将主机玻璃加热到第一预定温度一段时间; 将包含3p组分和5p组分和6p组分中的至少一种的粉末与加热的主体玻璃混合成玻璃/粉末混合物; 将玻璃/粉末混合物加热至第二预定温度第二段时间; 并在加热后冷却玻璃/粉末混合物。