公开(公告)号：US20120063720A1

公开(公告)日：2012-03-15

申请号：US13228202

申请日：2011-09-08

申请人： Baishi Wang ,  Mathieu Alexandre Antoina ,  Ying Qin

发明人： Baishi Wang ,  Mathieu Alexandre Antoina ,  Ying Qin

IPC分类号： G02B6/255 ,  G02B6/32

CPC分类号： G02B6/2552 ,  G02B6/32

摘要： In some embodiments, an optical fiber assembly apparatus includes a signal fiber having a substantially constant outer diameter, a proximal portion, and a distal portion. The proximal portion has a waveguide structure configured to propagate an optical signal having a first mode field diameter and the distal portion has a waveguide structure configured to propagate the optical signal having the first mode field diameter at a proximal end of the distal portion and has an expanded waveguide structure configured to propagate the optical signal having a second mode field diameter at a distal end of the distal portion. The optical fiber assembly includes a lens fiber having a proximal end. The proximal end of the lens fiber is fused to the distal end of the distal portion of the signal fiber. The lens fiber is configured to propagate an optical signal through a nominally homogenous region.

摘要翻译： 在一些实施例中，光纤组合装置包括具有基本恒定的外径，近端部分和远端部分的信号光纤。 近端部分具有波导结构，其被配置为传播具有第一模场直径的光信号，并且远端部分具有波导结构，其被配置为在远侧部分的近端传播具有第一模场直径的光信号，并且具有 扩展波导结构被配置为在远端部分的远端处传播具有第二模场直径的光信号。 光纤组件包括具有近端的透镜光纤。 透镜光纤的近端与信号光纤的远端部分的远端熔合。 透镜光纤被配置成通过标称均匀的区域传播光信号。

公开(公告)号：US07116472B2

公开(公告)日：2006-10-03

申请号：US11061983

申请日：2005-02-18

申请人： Matthew Julius Andrejco ,  Baishi Wang

发明人： Matthew Julius Andrejco ,  Baishi Wang

IPC分类号： H01S3/067 ,  H01S3/17

CPC分类号： H01S3/06716 ,  H01S3/06754 ,  H01S3/1608 ,  H01S3/1691 ,  H01S3/1693 ,  H01S3/1695

摘要： A rare-earth-doped optical fiber comprises a silica core region doped with a rare earth element and a cladding region adjacent the core region, characterized in that the core region is also doped with aluminum (Al) and fluorine (F). The presence of small amounts of F are effective to lower the refractive index, and hence the NA, of the core region even in the presence of significant amounts of Al (e.g., >8 mol %). Thus, the fiber has both a relatively flat gain spectrum and a low NA (e.g.,

摘要翻译： 稀土掺杂光纤包括掺杂有稀土元素的二氧化硅核心区域和与核心区域相邻的包层区域，其特征在于，芯区域还掺杂有铝（Al）和氟（F）。 即使存在显着量的Al（例如，> 8mol％），少量F的存在也有效地降低核心区域的折射率，并因此降低NA。 因此，光纤具有相对平坦的增益光谱和低的NA（例如，<0.20）。 还描述了并入这种光纤的光放大器。 优选地，芯的稀土组合物至少包括铒，并且芯也掺杂有锗。

公开(公告)号：US08179928B2

公开(公告)日：2012-05-15

申请号：US12830629

申请日：2010-07-06

申请人： Baishi Wang

发明人： Baishi Wang

IPC分类号： H01S3/30 ,  H01S3/09 ,  H01S3/08

CPC分类号： H01S3/0675 ,  G02B6/02047 ,  G02B6/024 ,  G02B6/4296 ,  H01S3/06712 ,  H01S3/08059 ,  H01S3/082 ,  H01S2301/08

摘要： In some embodiments, an apparatus includes a first laser cavity including a set of high-reflector gratings coupled in series and a second laser cavity including a set of high-reflector gratings coupled in series. Each high-reflector grating has an associated spectral bandwidth. The first laser cavity is configured to receive at a first end optical energy having a first spectral bandwidth and the second laser cavity is configured to receive at a first end optical energy having a second spectral bandwidth. A fiber coupler is coupled to a second end of the first laser cavity and to a second end of the second laser cavity. The fiber coupler is configured to receive optical energy from the first laser cavity having a third spectral bandwidth greater than the first spectral bandwidth, and receive optical energy from the second laser cavity having a fourth spectral bandwidth greater than the second spectral bandwidth.

摘要翻译： 在一些实施例中，一种装置包括第一激光腔，其包括串联耦合的一组高反射器光栅和包括串联耦合的一组高反射器光栅的第二激光腔。 每个高反射器光栅都具有相关的光谱带宽。 第一激光腔被配置为在第一端接收具有第一光谱带宽的光能，并且第二激光腔被配置为在第一端接收具有第二光谱带宽的光能。 光纤耦合器耦合到第一激光腔的第二端和第二激光腔的第二端。 光纤耦合器被配置为从第一激光腔接收具有大于第一光谱带宽的第三光谱带宽的光能，并且从第二激光腔接收具有大于第二光谱带宽的第四光谱带宽的光能。

公开(公告)号：US20060187540A1

公开(公告)日：2006-08-24

申请号：US11061983

申请日：2005-02-18

申请人： Matthew Andrejco ,  Baishi Wang

发明人： Matthew Andrejco ,  Baishi Wang

IPC分类号： H01S3/00

CPC分类号： H01S3/06716 ,  H01S3/06754 ,  H01S3/1608 ,  H01S3/1691 ,  H01S3/1693 ,  H01S3/1695

摘要： A rare-earth-doped optical fiber comprises a silica core region doped with a rare earth element and a cladding region adjacent the core region, characterized in that the core region is also doped with aluminum (Al) and fluorine (F). The presence of small amounts of F are effective to lower the refractive index, and hence the NA, of the core region even in the presence of significant amounts of Al (e.g.,>8 mol %). Thus, the fiber has both a relatively flat gain spectrum and a low NA (e.g.,

摘要翻译： 稀土掺杂光纤包括掺杂有稀土元素的二氧化硅核心区域和与核心区域相邻的包层区域，其特征在于，芯区域还掺杂有铝（Al）和氟（F）。 即使存在显着量的Al（例如> 8mol％），少量F的存在也有效地降低核心区域的折射率，并因此降低NA。 因此，光纤具有相对平坦的增益光谱和低NA（例如，<0.20）。 还描述了并入这种光纤的光放大器。 优选地，芯的稀土组合物至少包括铒，并且芯也掺杂有锗。

公开(公告)号：US20060028712A1

公开(公告)日：2006-02-09

申请号：US11124290

申请日：2005-05-09

申请人： Tomoko Ohtsuki ,  Jutarou Miura ,  Masaru Fukushima ,  Baishi Wang

发明人： Tomoko Ohtsuki ,  Jutarou Miura ,  Masaru Fukushima ,  Baishi Wang

IPC分类号： H01S3/00

CPC分类号： H01S3/06754 ,  H01S3/06708

摘要： A system, method and computer program product for determining excited state absorption (ESA) dependent parameters (gain and noise figure) of an EDF and an EDFA corresponding to a determined average inversion value of an EDF. Also, a system, method and computer program product for using an EDFA model that incorporates ESA parameters to in calculating an EDFA gain and noise figure to design laser systems with high accuracy.

摘要翻译： 用于确定与EDF的确定的平均反转值相对应的EDF和EDFA的激发态吸收（ESA）相关参数（增益和噪声系数）的系统，方法和计算机程序产品。 另外，一种使用EDFA模型的系统，方法和计算机程序产品，其中包含ESA参数以计算EDFA增益和噪声系数，以高精度设计激光系统。

公开(公告)号：US20110158266A1

公开(公告)日：2011-06-30

申请号：US12830629

申请日：2010-07-06

申请人： Baishi Wang

发明人： Baishi Wang

IPC分类号： H01S3/30

CPC分类号： H01S3/0675 ,  G02B6/02047 ,  G02B6/024 ,  G02B6/4296 ,  H01S3/06712 ,  H01S3/08059 ,  H01S3/082 ,  H01S2301/08

摘要： In some embodiments, an apparatus includes a first laser cavity including a set of high-reflector gratings coupled in series and a second laser cavity including a set of high-reflector gratings coupled in series. Each high-reflector grating has an associated spectral bandwidth. The first laser cavity is configured to receive at a first end optical energy having a first spectral bandwidth and the second laser cavity is configured to receive at a first end optical energy having a second spectral bandwidth. A fiber coupler is coupled to a second end of the first laser cavity and to a second end of the second laser cavity. The fiber coupler is configured to receive optical energy from the first laser cavity having a third spectral bandwidth greater than the first spectral bandwidth, and receive optical energy from the second laser cavity having a fourth spectral bandwidth greater than the second spectral bandwidth.

摘要翻译： 在一些实施例中，一种装置包括第一激光腔，其包括串联耦合的一组高反射器光栅和包括串联耦合的一组高反射器光栅的第二激光腔。 每个高反射器光栅都具有相关的光谱带宽。 第一激光腔被配置为在第一端接收具有第一光谱带宽的光能，并且第二激光腔被配置为在第一端接收具有第二光谱带宽的光能。 光纤耦合器耦合到第一激光腔的第二端和第二激光腔的第二端。 光纤耦合器被配置为从第一激光腔接收具有大于第一光谱带宽的第三光谱带宽的光能，并且从第二激光腔接收具有大于第二光谱带宽的第四光谱带宽的光能。