公开(公告)号：US20090052476A1

公开(公告)日：2009-02-26

申请号：US12222239

申请日：2008-08-05

申请人： Bing Yao ,  Seiji Kojima ,  Kazumasa Ohsono ,  Akihito Hongo

发明人： Bing Yao ,  Seiji Kojima ,  Kazumasa Ohsono ,  Akihito Hongo

IPC分类号： G02B6/02 ,  H01S3/30 ,  B29D11/00

CPC分类号： H01S3/0675 ,  G02B6/02347 ,  H01S3/06729 ,  H01S3/06741 ,  H01S3/08045 ,  H01S3/094011 ,  H01S3/0941 ,  H01S3/1618

摘要： The optical fiber 1 for an optical fiber laser is provided with a rare earth element doped core 2 doped with a rare earth element, a cladding 3 formed at an outer periphery of the rare earth element doped core 2, a core vicinity part 3′ of the cladding 3 provided in vicinity of the rare earth element doped core 2 being doped with a refractive index increasing agent which reduces a relative refractive index difference between the core vicinity part 3′ and the rare earth element doped core 2 to be 0.1% or less.

摘要翻译： 用于光纤激光器的光纤1设置有掺杂有稀土元素的稀土元素掺杂芯2，在稀土元素掺杂芯2的外周形成的包层3，芯附近部3' 设置在稀土元素掺杂芯2附近的包层3掺杂有折射率增加剂，其将芯部附近部分3'和稀土元素掺杂芯2之间的相对折射率差减小到0.1％以下 。

公开(公告)号：US20080192778A1

公开(公告)日：2008-08-14

申请号：US11987668

申请日：2007-12-03

申请人： Kazumasa Ohsono ,  Akihito Hongo ,  Seiji Kojima ,  Bing Yao

发明人： Kazumasa Ohsono ,  Akihito Hongo ,  Seiji Kojima ,  Bing Yao

IPC分类号： H01S3/067 ,  G02B6/036

CPC分类号： G02B6/02 ,  A61B2018/2222 ,  B23K26/0626 ,  C03C3/06 ,  C03C25/1063 ,  C03C25/12 ,  G02B6/02347 ,  G02B6/02395 ,  H01S3/06729 ,  H01S3/06741 ,  H01S3/0675 ,  H01S3/094007 ,  H01S3/09415 ,  H01S3/1022

摘要： A cladding is provided at an outer periphery of a solid-core doped with rare earth ions, and a metal layer is formed to be adjacent to the cladding to provide an optical fiber for a fiber laser device. The metal layer having an inner metal layer and an outer metal layer is disposed along an entire length of the optical fiber for a fiber laser device. An exciting light is incident to the optical fiber for a fiber laser device, and the exciting light is reflection-excited to emit a high power laser oscillation light. A monitoring current is constantly flown into the metal layer. When the disconnection of the optical fiber for a fiber laser device is detected based on the monitoring current, the energization of the optical fiber for a fiber laser device is stopped.

摘要翻译： 在掺杂有稀土离子的固体的外周设置包层，并且形成与包层相邻的金属层，以提供用于光纤激光器件的光纤。 具有内金属层和外金属层的金属层沿着用于光纤激光器件的光纤的整个长度设置。 入射到光纤激光器件的光纤的激发光，并且激发光被反射激发以发射高功率的激光振荡光。 监测电流不断地流入金属层。 当基于监视电流检测到用于光纤激光器件的光纤的断开时，光纤激光器件的光纤的通电被停止。

公开(公告)号：US20070189340A1

公开(公告)日：2007-08-16

申请号：US11702190

申请日：2007-02-05

申请人： Akihito Hongo ,  Kazumasa Ohsono ,  Bing Yao

发明人： Akihito Hongo ,  Kazumasa Ohsono ,  Bing Yao

IPC分类号： H01S3/30

CPC分类号： H01S3/094003 ,  H01S3/06704 ,  H01S3/06708

摘要： To provide a low-cost, high reliability and high-powered operation enabled optical fiber laser, in the optical fiber laser for oscillating a laser light by introducing an excitation light for exciting the rare earth elements into the optical fiber doped partially by the rare earth elements, the optical fiber is wrapped around the base member, and one part of the outer circumferential area of the wrapped optical fiber is processed in order to form a flat surface, and one face of the prism is made contacted to the flat surface, and the excitation light is introduced to another surface of the prism.

摘要翻译： 为了提供低成本，高可靠性和高功率运行的光纤激光器，在用于通过引入用于将稀土元素激发到由稀土部分掺杂的光纤中的激发光来振荡激光的光纤激光器 元件，光纤被包围在基底构件上，并且包裹的光纤的外周区域的一部分被加工以形成平坦表面，并且使棱镜的一个面与平坦表面接触，并且 激发光被引入棱镜的另一个表面。

公开(公告)号：US07903695B2

公开(公告)日：2011-03-08

申请号：US12274463

申请日：2008-11-20

申请人： Seiji Kojima ,  Bing Yao ,  Kazumasa Ohsono ,  Akihito Hongo ,  Akio Sato ,  Kohei Yanaka ,  Kazuo Hasegawa ,  Daisuke Inoue ,  Hiroshi Ito ,  Tadashi Ichikawa ,  Kazuya Saito

发明人： Seiji Kojima ,  Bing Yao ,  Kazumasa Ohsono ,  Akihito Hongo ,  Akio Sato ,  Kohei Yanaka ,  Kazuo Hasegawa ,  Daisuke Inoue ,  Hiroshi Ito ,  Tadashi Ichikawa ,  Kazuya Saito

IPC分类号： H01S3/30

CPC分类号： H01S3/06708 ,  H01S3/06745 ,  H01S3/094003 ,  H01S3/0941

摘要： An optical fiber laser, according to the present invention, has an optical fiber including a core to which a rare earth element is added and a clad disposed around the core, and also has an excitation light source for emitting excitation light incident on a side of the optical fiber. The optical fiber has a corrugated shape on the outer circumference of the clad along the longitudinal direction thereof; and the optical fiber is wound in a spiral form and is bundled in such a way that adjacent sides of the clad are brought into contact with one another.

摘要翻译： 根据本发明的光纤激光器具有包括添加有稀土元素的芯和围绕芯设置的包层的光纤，并且还具有用于发射入射在芯的侧面上的激发光的激发光源 光纤。 光纤在其包层的外周沿其长度方向具有波纹形状; 并且光纤被卷绕成螺旋形状并且被捆扎成使得包层的相邻侧彼此接触的方式。

公开(公告)号：US07813386B2

公开(公告)日：2010-10-12

申请号：US12219696

申请日：2008-07-25

申请人： Bing Yao ,  Seiji Kojima ,  Kazumasa Ohsono ,  Akihito Hongo

发明人： Bing Yao ,  Seiji Kojima ,  Kazumasa Ohsono ,  Akihito Hongo

IPC分类号： H01S3/30

CPC分类号： H01S3/06716 ,  H01S3/0672

摘要： The optical fiber 1 for an optical fiber laser is provided with a rare earth element doped core 2 doped with a rare earth element, and a cladding 3 formed at an outer periphery of the rare earth element doped core 2. In the optical fiber 1 for an optical fiber laser, the rare earth element doped core 2 is divided into a plurality of core regions 2a, 2b, . . . , 2n−1, 2n along a longitudinal direction of the optical fiber 1 and dopant concentrations of the rare earth element in respective core regions 2a, 2b, . . . , 2n−1, 2n are different from each other, in order to flatten a temperature distribution of the optical fiber 1 along the longitudinal direction.

摘要翻译： 用于光纤激光器的光纤1设置有掺杂有稀土元素的稀土元素掺杂芯2和形成在稀土元素掺杂芯2的外周的包层3。在用于 光纤激光器，稀土元素掺杂芯2被分成多个核心区域2a，2b。 。 。 ，2n-1，2n沿着光纤1的长度方向和稀土元素的掺杂浓度。 。 。 为了使光纤1的长度方向的温度分布变平坦，2n-1，2n彼此不同。

公开(公告)号：US07769058B2

公开(公告)日：2010-08-03

申请号：US11702190

申请日：2007-02-05

申请人： Akihito Hongo ,  Kazumasa Ohsono ,  Bing Yao

发明人： Akihito Hongo ,  Kazumasa Ohsono ,  Bing Yao

IPC分类号： H01S3/30

CPC分类号： H01S3/094003 ,  H01S3/06704 ,  H01S3/06708

摘要： To provide a low-cost, high reliability and high-powered operation enabled optical fiber laser, in the optical fiber laser for oscillating a laser light by introducing an excitation light for exciting the rare earth elements into the optical fiber doped partially by the rare earth elements, the optical fiber is wrapped around the base member, and one part of the outer circumferential area of the wrapped optical fiber is processed in order to form a flat surface, and one face of the prism is made contacted to the flat surface, and the excitation light is introduced to another surface of the prism.

摘要翻译： 为了提供低成本，高可靠性和高功率运行的光纤激光器，在用于通过引入用于将稀土元素激发到由稀土部分掺杂的光纤中的激发光来振荡激光的光纤激光器 元件，光纤被包围在基底构件上，并且包裹的光纤的外周区域的一部分被加工以形成平坦表面，并且使棱镜的一个面与平坦表面接触，并且 激发光被引入棱镜的另一个表面。

公开(公告)号：US20090129411A1

公开(公告)日：2009-05-21

申请号：US12274463

申请日：2008-11-20

申请人： Seiji Kojima ,  Bing Yao ,  Kazumasa Ohsono ,  Akihito Hongo ,  Akio Sato ,  Kohei Yanaka ,  Kazuo Hasegawa ,  Daisuke Inoue ,  Hiroshi Ito ,  Tadashi Ichikawa ,  Kazuya Saito

发明人： Seiji Kojima ,  Bing Yao ,  Kazumasa Ohsono ,  Akihito Hongo ,  Akio Sato ,  Kohei Yanaka ,  Kazuo Hasegawa ,  Daisuke Inoue ,  Hiroshi Ito ,  Tadashi Ichikawa ,  Kazuya Saito

IPC分类号： H01S3/091 ,  H01S3/30

CPC分类号： H01S3/06708 ,  H01S3/06745 ,  H01S3/094003 ,  H01S3/0941

摘要： An optical fiber laser, according to the present invention, has an optical fiber including a core to which a rare earth element is added and a clad disposed around the core, and also has an excitation light source for emitting excitation light incident on a side of the optical fiber. The optical fiber has a corrugated shape on the outer circumference of the clad along the longitudinal direction thereof; and the optical fiber is wound in a spiral form and is bundled in such a way that adjacent sides of the clad are brought into contact with one another.

摘要翻译： 根据本发明的光纤激光器具有包括添加有稀土元素的芯和围绕芯设置的包层的光纤，并且还具有用于发射入射在芯的侧面上的激发光的激发光源 光纤。 光纤在其包层的外周沿其长度方向具有波纹形状; 并且光纤被卷绕成螺旋形状并且被捆扎成使得包层的相邻侧彼此接触的方式。

公开(公告)号：US20080267229A1

公开(公告)日：2008-10-30

申请号：US12149025

申请日：2008-04-25

申请人： Seiji Kojima ,  Akihito Hongo ,  Kazumasa Ohsono ,  Bing Yao ,  Kazuya Saito

发明人： Seiji Kojima ,  Akihito Hongo ,  Kazumasa Ohsono ,  Bing Yao ,  Kazuya Saito

IPC分类号： H01S3/30 ,  G02B6/02

CPC分类号： G02B6/02066 ,  C03B37/027 ,  C03B2203/18 ,  C03B2205/20 ,  G02B6/03622 ,  G02B2006/02157 ,  H01S3/06729 ,  H01S3/06745 ,  H01S3/094007

摘要： An optical fiber includes a rare-earth element-added core for serving as a gain medium, and a cladding formed on a periphery of the core. Pump light propagated through the cladding is coupled into the core. The cladding is in an undulation shape in the longitudinal direction of the cladding. The undulation shape of the cladding is formed according to a grating period at which the pump light is totally reflected and propagated in the cladding. The core includes an undulation shape in a longitudinal direction of the core. The cladding includes an undulating inner cladding, and an outer cladding provided on a periphery of the inner cladding. The core and/or the cladding is circular or abnormally circular in its transverse cross section.

摘要翻译： 光纤包括用作增益介质的稀土元素添加芯和形成在芯的周边上的包层。 通过包层传播的泵浦光耦合到芯中。 包层在包层的纵向方向处于起伏的形状。 包层的起伏形状根据光泵浦光在包层中被全反射和传播的光栅周期形成。 芯部包括在芯部的纵向方向上的起伏形状。 包层包括起伏的内包层和设置在内包层的周边上的外包层。 芯和/或包层在其横截面中为圆形或异常圆形。

公开(公告)号：US20090316733A1

公开(公告)日：2009-12-24

申请号：US12486928

申请日：2009-06-18

申请人： Bing Yao ,  Kazumasa Ohsono ,  Akihito Hongo ,  Akio Satou ,  Kohei Yanaka ,  Kazuya Saito

发明人： Bing Yao ,  Kazumasa Ohsono ,  Akihito Hongo ,  Akio Satou ,  Kohei Yanaka ,  Kazuya Saito

IPC分类号： H01S3/30

CPC分类号： H01S3/0675 ,  H01S3/06729 ,  H01S3/06741 ,  H01S3/07 ,  H01S3/0804 ,  H01S3/094011

摘要： The present invention provides an optical fiber, for use in a fiber laser, from which a high-quality single-mode laser beam with high optical power is obtained and also provides a fiber laser that uses the optical fiber. The novel optical fiber, which includes a core to which a rare earth element is doped and a cladding formed around the core, amplifies excitation light to oscillate a laser beam. A mode filter is formed at a predetermined position in the longitudinal direction of the optical fiber.

摘要翻译： 本发明提供了一种用于光纤激光器的光纤，其中获得了具有高光功率的高质量单模激光束，并且还提供了使用该光纤的光纤激光器。 包括稀土元素掺杂的芯和围绕芯形成的包层的新型光纤放大激发光以振荡激光束。 模式滤波器形成在光纤的纵向方向上的预定位置处。

公开(公告)号：US07684449B2

公开(公告)日：2010-03-23

申请号：US11987668

申请日：2007-12-03

申请人： Kazumasa Ohsono ,  Akihito Hongo ,  Seiji Kojima ,  Bing Yao

发明人： Kazumasa Ohsono ,  Akihito Hongo ,  Seiji Kojima ,  Bing Yao

IPC分类号： H01S3/30

CPC分类号： G02B6/02 ,  A61B2018/2222 ,  B23K26/0626 ,  C03C3/06 ,  C03C25/1063 ,  C03C25/12 ,  G02B6/02347 ,  G02B6/02395 ,  H01S3/06729 ,  H01S3/06741 ,  H01S3/0675 ,  H01S3/094007 ,  H01S3/09415 ,  H01S3/1022

摘要： A cladding is provided at an outer periphery of a solid-core doped with rare earth ions, and a metal layer is formed to be adjacent to the cladding to provide an optical fiber for a fiber laser device. The metal layer having an inner metal layer and an outer metal layer is disposed along an entire length of the optical fiber for a fiber laser device. An exciting light is incident to the optical fiber for a fiber laser device, and the exciting light is reflection-excited to emit a high power laser oscillation light. A monitoring current is constantly flown into the metal layer. When the disconnection of the optical fiber for a fiber laser device is detected based on the monitoring current, the energization of the optical fiber for a fiber laser device is stopped.

摘要翻译： 在掺杂有稀土离子的固体的外周设置包层，并且形成与包层相邻的金属层，以提供用于光纤激光器件的光纤。 具有内金属层和外金属层的金属层沿着用于光纤激光器件的光纤的整个长度设置。 入射到光纤激光器件的光纤的激发光，并且激发光被反射激发以发射高功率的激光振荡光。 监测电流不断地流入金属层。 当基于监视电流检测到用于光纤激光器件的光纤的断开时，光纤激光器件的光纤的通电被停止。