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    Article comprising a cladding pumped optical fiber laser
    13.
    发明公开
    Article comprising a cladding pumped optical fiber laser 失效
    装置通过所述封套的光纤激光器泵浦

    公开(公告)号：EP0831566A2

    公开(公告)日：1998-03-25

    申请号：EP97307171.5

    申请日：1997-09-16

    Applicant: LUCENT TECHNOLOGIES INC.

    Inventor： DiGiovanni, David John ,  Vengsarkar, Ashish Madhukar

    IPC: H01S3/06

    CPC classification number: H01S3/094003 ,  H01S3/06708 ,  H01S3/06729 ,  H01S3/0675 ,  H01S3/094007

    Abstract: A cladding pumped optical fiber laser (40) comprises a length of optical fiber having a rare earth-doped region of diameter d RE > d 01 , where d 01 is the mode diameter of the LP 01 mode of the fiber at the laser radiation at wavelength λ. In one embodiment the fiber has a core diameter d c selected such that the LP 01 mode is the only guided spatial mode of the fiber, and d RE is greater than d c . In another embodiment the fiber supports at least one higher order guided spatial mode, typically LP 11 or LP 02 , and d RE is approximately equal to or larger than d c . Currently preferred embodiments comprise a grating-defined laser cavity that comprises a mode-coupling refractive index grating (45). Cladding pumped lasers according to the invention will typically have efficient conversion of pump radiation to laser radiation, and consequently can typically be shorter than analogous prior art cladding pumped lasers.

    Article comprising a micro-structured optical fiber, and method of making such fiber
    14.
    发明公开
    Article comprising a micro-structured optical fiber, and method of making such fiber 无效
    具有微结构光纤和用于制备这样的纤维制品

    公开(公告)号：EP0810453A1

    公开(公告)日：1997-12-03

    申请号：EP97303414.3

    申请日：1997-05-19

    Applicant: LUCENT TECHNOLOGIES INC.

    Inventor： DiGiovanni, David John ,  Wagener, Jefferson Lynn ,  Vengsarkar, Ashish Madhukar ,  Windeler, Robert Scott

    IPC: G02B6/12

    CPC classification number: G02B6/02261 ,  B82Y20/00 ,  C03B37/0122 ,  C03B37/027 ,  C03B2201/34 ,  C03B2203/14 ,  C03B2203/36 ,  C03B2203/42 ,  G02B6/02028 ,  G02B6/021 ,  G02B6/023 ,  G02B6/02333 ,  G02B6/02338 ,  G02B6/02347 ,  G02B6/02357 ,  G02B6/02361 ,  H01S3/06708

    Abstract: Disclosed are non-periodic microstructured optical fibers that guide radiation by index guiding. By appropriate choice of core region and cladding region, the effective refractive index difference Δ between core region and cladding can be made large, typically greater than 5% or even 10 or 20%. Such high Δ results in small mode field diameter of the fundamental guided mode (typically

    Abstract translation: 本发明公开了非周期微结构化光学纤维做导向辐射由折射率导向。 由纤芯区域和包层区域的合适的选择，芯区和包层之间的有效折射率差DELTA可以制成大的，典型地大于5％或甚至10或20％。 在基波导模（通常<2.5微米），因此在芯区域高辐射强度的高DELTA小模场直径的搜索结果。 示例性地，纤维gemäß到，本发明具有固体二氧化硅纤芯区域（51）并通过内包层区域的建筑物和外部包层区域包围。 包层区域具有毛细管空隙（52，53）在轴向纤维方向上延伸，与在具有比内包层区的那些（52）的较大直径的外部包层区域中的空隙（53），审查确实有效折射率 外包层区的比内包层区的厚度。 非周期微结构光纤潜在地具有许多用途，E. G.，作为色散补偿光纤（有或没有色散斜率补偿），作为放大用光纤，激光，作为可饱和吸收，对于光纤光栅，以及用于非线性元件。 制造微结构光纤gibt盘的方法，游离缺失。

    Optical fiber manufacture
    20.
    发明公开
    Optical fiber manufacture 失效
    光纤的制造

    公开(公告)号：EP0860719A3

    公开(公告)日：1999-07-28

    申请号：EP98300949.9

    申请日：1998-02-10

    Applicant: LUCENT TECHNOLOGIES INC.

    Inventor： DiGiovanni, David John ,  Yan, Man Fei ,  Jacobs, Steven Alan

    IPC: G02B6/16

    CPC classification number: C03B37/01257 ,  C03B37/01869

    Abstract: The specification describes a process and apparatus for monitoring and controlling the ellipticity of preform tubes during Modified Chemical Vapor Deposition. In response to computer generated signals from the monitoring device, the tube collapse rate is adjusted dynamically by locally changing the temperature of the glass tube, or by changing the physical force acting to collapse the tube.

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