公开(公告)号：US06819846B2

公开(公告)日：2004-11-16

申请号：US10206663

申请日：2002-07-26

申请人： Rachel S. Mozdy ,  Atul D. Pradhan ,  Frances M. Smith ,  William A. Wood

发明人： Rachel S. Mozdy ,  Atul D. Pradhan ,  Frances M. Smith ,  William A. Wood

IPC分类号： G02B616

CPC分类号： H01S3/06716 ,  C03C13/04 ,  C03C13/046 ,  G02B6/02004 ,  G02B6/02285 ,  G02B6/0285 ,  H01S3/067 ,  H01S3/06729 ,  H01S3/1608

摘要： An optical waveguide fiber amplifier comprising a core region comprises at least in part between 1300 wt.ppm and 3600 wt.ppm Er2O3, between 6.0 wt. % to 10.0 wt. % Al2O3 and between 9.0 wt. % and 20.0 wt. % GeO2. The amplifier also comprising an inner clad surrounding the core region and an outer clad surrounding the inner clad. The relative refractive index percentages and radii of the core region, inner clad and outer clad are chosen from the following ranges: the relative refractive index percent of the core segment within the range of from about 0.5% to about 2.0%; the relative refractive index percent of the inner clad within the range of from about 0.0% to about 0.4%; the outer radius of the core region within the range of from about 0.7 &mgr;m to about 1.5 &mgr;m; and, the outer radius of the inner clad within the range of from about 4.3 &mgr;m to about 18.8 &mgr;m.

摘要翻译： 包括芯区域的光波导光纤放大器至少部分地包括在1300重量ppm和3600重量ppm Er 2 O 3之间，6.0重量％ ％〜10.0重量％ ％Al 2 O 3和9.0重量％ ％和20.0重量％ ％GeO2。 放大器还包括围绕芯区的内包层和围绕内包层的外包层。 芯区域，内包层和外包层的相对折射率百分比和半径选自以下范围：核心片段的相对折射率百分比在约0.5％至约2.0％的范围内; 内包层的相对折射率百分比在约0.0％至约0.4％的范围内; 芯区域的外半径在约0.7μm至约1.5μm的范围内; 并且内包层的外半径在约4.3μm至约18.8μm的范围内。

公开(公告)号：US06912342B2

公开(公告)日：2005-06-28

申请号：US10328553

申请日：2002-12-19

申请人： David P. Machewirth ,  Eric J. Mozdy ,  Rachel S. Mozdy ,  Daniel A. Nolan ,  V Srikant ,  Sergey Y. Ten

发明人： David P. Machewirth ,  Eric J. Mozdy ,  Rachel S. Mozdy ,  Daniel A. Nolan ,  V Srikant ,  Sergey Y. Ten

IPC分类号： G02B6/14 ,  G02B6/34 ,  G02B6/26

CPC分类号： G02B6/29376 ,  G02B6/14 ,  H01S3/06704 ,  H01S3/06754 ,  H01S3/08045 ,  H01S2301/02

摘要： Disclosed is a fiber optic module containing one or more optical fibers having an attenuator formed in the output end of the fibers to filter out unwanted higher order modes. The optical fibers are typically gain fibers or dispersion compensating fibers, and the attenuator consists of a coil, or a series of bends, of sufficient number and bend radius that higher order modes are reduced below a desired level.

摘要翻译： 公开了一种光纤模块，其包含一根或多根光纤，该光纤具有形成在光纤的输出端的衰减器，以过滤不想要的高阶模式。 光纤通常是增益光纤或色散补偿光纤，并且衰减器由具有足够数量和弯曲半径的线圈或一系列弯曲部组成，高阶模式被降低到期望的水平以下。