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    PHOTONIC CRYSTAL FIBER ASSEMBLY
    1.
    发明申请
    PHOTONIC CRYSTAL FIBER ASSEMBLY 审中-公开
    光子晶体纤维组装

    公开(公告)号：WO2017108060A1

    公开(公告)日：2017-06-29

    申请号：PCT/DK2016/050459

    申请日：2016-12-22

    Applicant: NKT PHOTONICS A/S

    Inventor： ALKESKJOLD, Thomas Tanggaard ,  LYNGSØE, Jens Kristian ,  JAKOBSEN, Christian ,  MAACK, Martin Dybendal ,  MICHIELETTO, Mattia ,  PAPIOR, Sidsel Rübner

    IPC: G02B6/36

    CPC classification number: G02B6/3833 ,  G02B6/02314 ,  G02B6/02328

    Abstract: The invention comprises a photonic crystal fiber (PCF) assembly comprising a PCF and at least one ferrule structure. The PCF has a center axis and comprises a core region and a cladding region and a first fiber end section with a first fiber end. The ferrule structure has a center axis and is mounted to the first fiber end section. The ferrule structure comprises an inner ferrule arrangement and an outer ferrule arrangement surrounding the first fiber end section. The inner ferrule arrangement comprises an inner ferrule front section proximally to the first fiber end and an inner ferrule rear section distally to the first fiber end, and each of the inner ferrule sections have an inner diameter and in at least a length thereof fully surrounds the PCF. The inner ferrule rear section is anchored in an anchor length section to the first fiber end section and the inner ferrule front section supports the first fiber end section proximally to the first fiber end.

    Abstract translation: 本发明包括光子晶体光纤（PCF）组件，其包括PCF和至少一个套箍结构。 PCF具有中心轴并且包括芯区域和包层区域以及具有第一光纤端部的第一光纤端部。 套箍结构具有中心轴线并安装到第一光纤端部。 套箍结构包括内套箍装置和围绕第一光纤末端部分的外套箍装置。 内套圈装置包括在第一光纤端部附近的内套圈前部和在第一光纤端部的远端的内套圈后部，并且每个内套圈部分具有内径并且在其至少一段长度上完全包围 PCF。 内套圈后部锚固在第一光纤端部的锚定长度部分中，并且内套圈前部将第一光纤端部支撑在第一光纤端部附近。

    OPTICAL FIBER WITH RESONANT STRUCTURE OF CLADDING FEATURES CONNECTED TO LIGHT SINK
    2.
    发明申请
    OPTICAL FIBER WITH RESONANT STRUCTURE OF CLADDING FEATURES CONNECTED TO LIGHT SINK 审中-公开
    具有连接到灯泡的遮蔽特征的共振结构的光纤

    公开(公告)号：WO2010020251A1

    公开(公告)日：2010-02-25

    申请号：PCT/DK2009/000185

    申请日：2009-08-18

    Applicant: NKT PHOTONICS A/S ,  ALKESKJOLD, Thomas Tanggaard

    Inventor： ALKESKJOLD, Thomas Tanggaard

    IPC: G02B6/02 ,  H01S3/067 ,  C03B37/027

    CPC classification number: H01S3/06754 ,  B29D11/00663 ,  C03B37/01217 ,  C03B37/0122 ,  C03B2201/34 ,  C03B2203/22 ,  C03B2203/24 ,  C03B2203/30 ,  C03B2203/31 ,  C03B2203/32 ,  C03B2203/42 ,  G02B6/02333 ,  G02B6/02361 ,  H01S3/06729 ,  H01S3/06741

    Abstract: An optical fibre that use index-guidance formed with a low index cladding or a microstructured cladding using voids/holes or low index features (404) together with multiple high index resonant cladding features (1205, 1206). One to three resonant cross sectional extending structure act as a filter by resonantly coupling light out to part of the cladding (1202) or other structures (fx. a high index outer cladding ring) that acts as light sink(s) at one to three wavelength when using one to three materials or features with different size, shape, refractive index profile or normalized frequency parameter. The fibre can be asymmetrical. The fibre can be adapted for suppression of higher order modes (HOM) and/or guiding light in a narrow spectral wavelength range and act as a band pass filter. For enhancing out-coupling the high index features can be arranged along two intersecting lines tangentially positioned in relation to the core and along a line that extends from the core and intersects the tangentially positioned lines. Light absorbing material such as samarium can be used in the light sink. The fibre can be used in a fibre amplifier or fibre laser.

    Abstract translation: 一种光纤，其使用由低折射率包层或微结构化包层形成的折射率引导，使用空隙/孔或低折射率特征（404）以及多个高折射率共振覆层特征（1205,1206）。 一至三个谐振截面延伸结构通过将光共振地耦合到一部分包层（1202）或其它结构（fx。高折射率外包层环），作为一个或三个光吸收体 使用一到三种材料或具有不同尺寸，形状，折射率分布或归一化频率参数的特征时的波长。 纤维可以是不对称的。 光纤可适用于抑制高阶模式（HOM）和/或引导窄光谱波长范围内的光，并充当带通滤光器。 为了增强外耦合，可以沿着相对于芯切线定位的两条相交线并且沿着从芯延伸并与切线定位的线相交的线布置高折射率特征。 光吸收材料如钐可用于光接收器。 光纤可用于光纤放大器或光纤激光器。

    LARGE CORE AREA SINGLE MODE OPTICAL FIBER
    5.
    发明公开
    LARGE CORE AREA SINGLE MODE OPTICAL FIBER 审中-公开

    公开(公告)号：EP3460543A1

    公开(公告)日：2019-03-27

    申请号：EP18198205.9

    申请日：2011-06-27

    Applicant: NKT Photonics A/S

    Inventor： ALKESKJOLD, Thomas Tanggaard

    IPC: G02B6/032 ,  C03B37/027 ,  H01S3/067

    Abstract: An optical fiber for guiding an optical signal, said optical fiber having a longitudinal, optical axis and a cross section perpendicular thereto, said optical fiber comprising:
    a core region being capable of guiding an optical signal in a fundamental core mode with an effective refractive index, n c , at an optical signal wavelength, λ 1 ;
    a cladding region surrounding the core region, the cladding region comprising an inner cladding region and an outer cladding region, said inner cladding region comprising a background material having a refractive index, n b , and a plurality of inner cladding features arranged in said background material, wherein at least a plurality of said plurality of inner cladding features are of a first type of feature, said first type of feature comprising an air hole surrounded by a high-index region comprising a high-index material having a refractive index, n r , that is larger than the refractive index of the inner cladding background material, said first type of feature supports an optical mode with an effective refractive index, n 1 , which is lower than or equal to the effective refractive index of the fundamental core mode, n c , at said optical signal wavelength, λ 1 .

    PHOTONIC CRYSTAL FIBER ASSEMBLY
    7.
    发明公开
    PHOTONIC CRYSTAL FIBER ASSEMBLY 审中-公开

    公开(公告)号：EP4009087A1

    公开(公告)日：2022-06-08

    申请号：EP22153290.6

    申请日：2016-12-22

    Applicant: NKT Photonics A/S

    Inventor： ALKESKJOLD, Thomas Tanggaard ,  LYNGSØE, Jens Kristian ,  JAKOBSEN, Christian ,  MAACK, Martin Dybendal ,  MICHIELETTO, Mattia ,  PAPIOR, Sidsel Rübner

    IPC: G02B6/38 ,  G02B6/02 ,  G02B6/42

    Abstract: A photonic crystal fiber (PCF) assembly comprises a PCF and at least one ferrule structure, said PCF has a center axis and comprises a core region and a cladding region and a first fiber end section (21) with a first fiber end (21a), said ferrule structure has a center axis and is mounted to said first fiber end section (21), the PCF center axis at the first fiber end section (21) and the ferrule structure center axis being parallel or coincident, said ferrule structure comprises an inner ferrule arrangement and an outer ferrule arrangement (5) surrounding the first fiber end section (21), said inner ferrule arrangement comprises an inner ferrule front section (22) proximally to said first fiber end (21a) and an inner ferrule rear section (23) distally to said first fiber end (21a), said inner ferrule front section (22) and said inner ferrule rear section (23) are not directly fixed to each other and the outer ferrule arrangement is configured to hold the inner ferrule front section and the inner ferrule rear section in position relative to each other, each of said inner ferrule sections (22, 23) have an inner diameter and in at least a length thereof fully surrounds the PCF, said inner ferrule rear section (23) is anchored in an anchor length section (23b) to said first fiber end section (21) and said inner ferrule front section (12) supports said first fiber end section (21) proximally to said first fiber end (21a),
    wherein said first fiber end section (21) has at least one mode stripper length section (27, 37), and
    wherein said mode stripper length section (27, 37) comprises a mode stripping high index material and/or a scattering layer applied in contact with the PCF at said mode stripper length section (27, 37) and/or said fiber in said mode stripper length section (27, 37) has a roughness Ra value of at least about 0.1 µm.

    PHOTONIC CRYSTAL FIBER ASSEMBLY
    8.
    发明公开
    PHOTONIC CRYSTAL FIBER ASSEMBLY 审中-公开

    公开(公告)号：EP3394652A1

    公开(公告)日：2018-10-31

    申请号：EP16877821.5

    申请日：2016-12-22

    Applicant: NKT Photonics A/S

    Inventor： ALKESKJOLD, Thomas Tanggaard ,  LYNGSØE, Jens Kristian ,  JAKOBSEN, Christian ,  MAACK, Martin Dybendal ,  MICHIELETTO, Mattia ,  PAPIOR, Sidsel Rübner

    IPC: G02B6/36

    CPC classification number: G02B6/3833 ,  G02B6/02314 ,  G02B6/02328

    Abstract: The invention comprises a photonic crystal fiber (PCF) assembly comprising a PCF and at least one ferrule structure. The PCF has a center axis and comprises a core region and a cladding region and a first fiber end section with a first fiber end. The ferrule structure has a center axis and is mounted to the first fiber end section. The ferrule structure comprises an inner ferrule arrangement and an outer ferrule arrangement surrounding the first fiber end section. The inner ferrule arrangement comprises an inner ferrule front section proximally to the first fiber end and an inner ferrule rear section distally to the first fiber end, and each of the inner ferrule sections have an inner diameter and in at least a length thereof fully surrounds the PCF. The inner ferrule rear section is anchored in an anchor length section to the first fiber end section and the inner ferrule front section supports the first fiber end section proximally to the first fiber end.

    OPTICAL FIBER WITH RESONANT STRUCTURE OF CLADDING FEATURES CONNECTED TO LIGHT SINK
    9.
    发明公开
    OPTICAL FIBER WITH RESONANT STRUCTURE OF CLADDING FEATURES CONNECTED TO LIGHT SINK 审中-公开
    与共振结构中的光ENKE ATTACHED WRAPPING纤维

    公开(公告)号：EP2321678A1

    公开(公告)日：2011-05-18

    申请号：EP09807901.5

    申请日：2009-08-18

    Applicant: NKT Photonics A/S

    Inventor： ALKESKJOLD, Thomas Tanggaard

    IPC: G02B6/02 ,  H01S3/067 ,  C03B37/027

    CPC classification number: H01S3/06754 ,  B29D11/00663 ,  C03B37/01217 ,  C03B37/0122 ,  C03B2201/34 ,  C03B2203/22 ,  C03B2203/24 ,  C03B2203/30 ,  C03B2203/31 ,  C03B2203/32 ,  C03B2203/42 ,  G02B6/02333 ,  G02B6/02361 ,  H01S3/06729 ,  H01S3/06741

    Abstract: An optical fibre that use index-guidance formed with a low index cladding or a microstructured cladding using voids/holes or low index features (404) together with multiple high index resonant cladding features (1205, 1206). One to three resonant cross sectional extending structure act as a filter by resonantly coupling light out to part of the cladding (1202) or other structures (fx. a high index outer cladding ring) that acts as light sink(s) at one to three wavelength when using one to three materials or features with different size, shape, refractive index profile or normalized frequency parameter. The fibre can be asymmetrical. The fibre can be adapted for suppression of higher order modes (HOM) and/or guiding light in a narrow spectral wavelength range and act as a band pass filter. For enhancing out-coupling the high index features can be arranged along two intersecting lines tangentially positioned in relation to the core and along a line that extends from the core and intersects the tangentially positioned lines. Light absorbing material such as samarium can be used in the light sink. The fibre can be used in a fibre amplifier or fibre laser.

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