公开(公告)号：EP2555028B1

公开(公告)日：2019-12-25

申请号：EP11762546.7

申请日：2011-03-11

Applicant: Fujikura Ltd.

Inventor： TANAKA Hironori

IPC: G02B6/028 ,  G02B6/036 ,  H01S3/067

公开(公告)号：EP3104201A1

公开(公告)日：2016-12-14

申请号：EP15743739.3

申请日：2015-02-02

Applicant: Fujikura Ltd.

Inventor： TANAKA Hironori

IPC: G02B6/02 ,  G02B6/036 ,  G02B6/44 ,  H01S3/067

Abstract: A residual light removal structure 70 is used to remove residual light in a double-clad fiber 40 having a core 60, a cladding 62 having a refractive index lower than a refractive index of the core 60, and a covering material 64 having a refractive index lower than the refractive index of the cladding 62. The residual light removal structure 70 has a fiber housing 72 that houses part of the double-clad fiber 40, a cladding exposure portion 74 in which part of the whole circumference of the cladding 62 is exposed from the covering material 64 along a longitudinal direction of the double-clad fiber 40, and a resin 76 filled within the fiber housing 72 so as to cover at least the cladding exposure portion 74. The resin 76 has a refractive index that is equal to or higher than the refractive index of the cladding 62. For example, the cladding exposure portion is formed with a range of angles less than 180° about an axis of the double-clad fiber 40 in a cross-section perpendicular to the axis.

Abstract translation: 残留光去除结构70用于除去具有芯体60的折射率低于芯体60的折射率的折射率的包层62和具有折射率的覆盖材料64的双包层光纤40中的残留光 低于包层62的折射率。残余光去除结构70具有容纳双包层光纤40的一部分的光纤壳体72，包层62的整个周边的一部分露出的包层曝光部分74 从覆盖材料64沿着双包层纤维40的纵向方向，以及填充在纤维壳体72内的树脂76，以至少覆盖包层曝光部分74.树脂76的折射率等于 或高于包层62的折射率。例如，包层曝光部分在垂直于斧头的横截面中以围绕双包层光纤40的轴线的角度小于180°形成 是。

公开(公告)号：EP3477348A1

公开(公告)日：2019-05-01

申请号：EP17819963.4

申请日：2017-06-20

Applicant: Fujikura Ltd.

Inventor： TANAKA Hironori

IPC: G02B6/02 ,  G02B6/42 ,  H01S3/10

Abstract: This optical device comprises: a first fiber 31 having a core 31a and cladding 31b that surrounds the outer periphery of the core 31a, a second fiber 32 having a core 32a and cladding 32b that surrounds the outer periphery of the core 32a and having one end face 32fb connected to one end face 31fa of the first fiber 31, and a quartz block 35 connected to the other end face 32fa of the second fiber 32. The other end face 32fa of the second fiber 32 is smaller than the face 35fb of the quartz block connected to the second fiber 32, and larger than the one end face 31fa of the first fiber 31.

公开(公告)号：EP3229052A1

公开(公告)日：2017-10-11

申请号：EP15865057.2

申请日：2015-11-25

Applicant: Fujikura Ltd.

Inventor： TANAKA Hironori

IPC: G02B6/42 ,  H01S5/022

CPC classification number: G02B6/424 ,  G02B6/4239 ,  H01S5/022

Abstract: The present invention provides a semiconductor laser module with high reliability that has a simple structure that can prevent a resin for fixing an optical fiber from coming off. The semiconductor laser module 1 has a base plate 11, a semiconductor laser device 22 disposed on the base plate 11, an optical fiber 30 operable to transmit a laser beam emitted from the semiconductor laser device 22, a fiber mount 40 that projects from an upper surface 11A of the base plate 11, and a resin 50 for fixing the optical fiber 30 on the fiber mount 40. The resin 50 is formed so as to cover side surfaces 42A, 42B, 43A, and 43B of the fiber mount 40.

Abstract translation: 本发明提供一种具有高可靠性的半导体激光模块，其具有可以防止用于固定光纤的树脂脱落的简单结构。 半导体激光模块1具有基板11，配置在基板11上的半导体激光元件22，传输从半导体激光元件22射出的激光的光纤30，从上方 基板11的表面11A以及用于将光纤30固定在光纤安装件40上的树脂50.树脂50形成为覆盖光纤安装件40的侧表面42A，42B，43A和43B。

公开(公告)号：EP2555028A1

公开(公告)日：2013-02-06

申请号：EP11762546.7

申请日：2011-03-11

Applicant: Fujikura Ltd.

Inventor： TANAKA Hironori

IPC: G02B6/028 ,  H01S3/06 ,  H01S3/10

Abstract: The invention aims to provide an optical fiber in which light that is input to the clad is easily released to the outside of the clad, and a laser device using the optical fiber. An optical fiber (50) includes a core (51), and a clad (52) coating the core (51). The clad (52) includes a refractive-index varying region (56) in which the refractive index increases in the direction from the inner circumferential side toward the outer circumferential side. In this structure, even when light is input to the clad (52), the light that has reached the refractive-index varying region (56) of the clad (52) is refracted and propagates from the inner circumferential side toward the outer circumferential side of the clad (52). Accordingly, light that is input to the clad (52) is easily released to the outside of the clad (52).

公开(公告)号：EP3104201B1

公开(公告)日：2020-01-15

申请号：EP15743739.3

申请日：2015-02-02

Applicant: Fujikura Ltd.

Inventor： TANAKA Hironori

IPC: G02B6/02 ,  G02B6/036 ,  G02B6/44 ,  H01S3/067

公开(公告)号：EP3104202A1

公开(公告)日：2016-12-14

申请号：EP15743598.3

申请日：2015-02-02

Applicant: Fujikura Ltd.

Inventor： TANAKA Hironori

IPC: G02B6/255 ,  G02B6/02 ,  G02B6/44 ,  H01S3/067

CPC classification number: H01S3/094007 ,  G02B6/14 ,  G02B6/245 ,  G02B6/255 ,  G02B6/2558 ,  G02B6/264 ,  G02B6/4296 ,  H01S3/0405 ,  H01S3/06704 ,  H01S3/06708 ,  H01S3/06729 ,  H01S3/094053 ,  H01S3/09408 ,  H01S3/0941

Abstract: A leakage light removal structure 70 is used to remove leakage light in an optical fiber 140 having a core 160, a cladding 162 having a refractive index lower than the core 160, and a covering material 164 having a refractive index higher than the cladding 162. The leakage light removal structure 70 has a fiber housing 72 that houses part of the optical fiber140, a covering material extension portion 175 covering part of a whole circumference of the cladding 162 by extending part of the covering material 164 along a longitudinal direction of the optical fiber 140 within the fiber housing 72, and a cladding exposure portion 174 in which a portion of the whole circumference of the cladding 162 other than the covering material extension portion 175 is exposed within the fiber housing 72. The covering material 164 may be covered with a resin 76 having a refractive index not more than the refractive index of the covering material 164. For example, the covering material extension portion 175 is formed with a range of angles equal to or less than 180° about an axis of the optical fiber 140 in a cross-section perpendicular to the axis.

Abstract translation: 泄漏光去除结构70用于去除具有芯160，折射率低于芯160的折射率的包层162的光纤140和折射率高于包层162的覆盖材料164的泄漏光。 泄漏光去除结构70具有容纳光纤140的一部分的光纤壳体72，覆盖材料延伸部175，覆盖材料延伸部175覆盖包层162的整个周边的一部分，通过沿着光学器件的长度方向延伸覆盖材料164的一部分 纤维壳体72内的纤维140以及覆盖材料延伸部分175以外的包覆层162的整个圆周的一部分暴露在纤维壳体72内的包层曝光部分174.覆盖材料164可以覆盖 具有折射率不大于覆盖材料164的折射率的树脂76.例如，覆盖材料延伸部分175 在垂直于该轴线的横截面中围绕光纤140的轴线形成等于或小于180度的角度范围。

公开(公告)号：EP3104202B1

公开(公告)日：2018-12-05

申请号：EP15743598.3

申请日：2015-02-02

Applicant: Fujikura Ltd.

Inventor： TANAKA Hironori

IPC: G02B6/255 ,  G02B6/02 ,  G02B6/44 ,  H01S3/067

CPC classification number: H01S3/094007 ,  G02B6/14 ,  G02B6/245 ,  G02B6/255 ,  G02B6/2558 ,  G02B6/264 ,  G02B6/4296 ,  H01S3/0405 ,  H01S3/06704 ,  H01S3/06708 ,  H01S3/06729 ,  H01S3/094053 ,  H01S3/09408 ,  H01S3/0941

Abstract: A leakage light removal structure 70 is used to remove leakage light in an optical fiber 140 having a core 160, a cladding 162 having a refractive index lower than the core 160, and a covering material 164 having a refractive index higher than the cladding 162. The leakage light removal structure 70 has a fiber housing 72 that houses part of the optical fiber140, a covering material extension portion 175 covering part of a whole circumference of the cladding 162 by extending part of the covering material 164 along a longitudinal direction of the optical fiber 140 within the fiber housing 72, and a cladding exposure portion 174 in which a portion of the whole circumference of the cladding 162 other than the covering material extension portion 175 is exposed within the fiber housing 72. The covering material 164 may be covered with a resin 76 having a refractive index not more than the refractive index of the covering material 164. For example, the covering material extension portion 175 is formed with a range of angles equal to or less than 180° about an axis of the optical fiber 140 in a cross-section perpendicular to the axis.

公开(公告)号：EP2551704A1

公开(公告)日：2013-01-30

申请号：EP11759224.6

申请日：2011-03-11

Applicant: Fujikura Ltd.

Inventor： TANAKA Hironori ,  HIMENO Kuniharu

IPC: G02B6/00 ,  G02B6/032 ,  G02B6/036 ,  H01S3/06

CPC classification number: H01S3/06733 ,  G02B6/02366 ,  G02B6/02376 ,  H01S3/042 ,  H01S3/06729 ,  H01S3/06741 ,  H01S3/06754 ,  H01S3/094007 ,  H01S3/09415

Abstract: The invention aims to provide a holey fiber that can release leak light propagating through the clad at a desired location, and a laser device using the holey fiber. A holey fiber (50) includes: one end (58) and the other end (59) ; a core (51) ; an inner clad (52) coating the core (51) ; a hole layer (53) having a large number of holes formed therein and coating the inner clad; and an outer clad (54) coating the hole layer (53). In this holey fiber, a collapse region (60) is formed, and the holes (56) in the collapse region are squashed by a predetermined length in the length direction of the fiber.

Abstract translation: 本发明的目的是提供一种多孔纤维，其可以释放在期望位置处传播穿过包层的泄漏光，以及使用多孔纤维的激光装置。 多孔纤维（50）包括：一端（58）和另一端（59）; 核心（51）; 涂覆所述芯部（51）的内包层（52）; 在其中形成有大量孔的涂层内包层的孔层（53）; 和覆盖所述孔层（53）的外包层（54）。 在该多孔纤维中，形成塌陷区域（60），并且塌陷区域中的孔（56）在纤维的长度方向上被挤压预定长度。