公开(公告)号：US11428865B2

公开(公告)日：2022-08-30

申请号：US16635200

申请日：2018-08-01

Applicant: University of Southampton

Inventor： Gregory Teofil Jasion ,  Francesco Poletti ,  Yong Chen ,  Eric Rodrigue Numakm Fokoua ,  Thomas David Bradley

IPC: G02B6/02 ,  C03B37/012 ,  C03B37/027

Abstract: A hollow core photonic bandgap optical fibre comprises: a cladding comprising capillaries in a hexagonal array and a hollow core formed by excluding a hexagonal group of nineteen capillaries from the centre of the hexagonal array. The core is inflated. A core size ratio is 1.26 or above, defined as a ratio of the core diameter to the cladding diameter normalized to the ratio of the core diameter to the cladding diameter in an undistorted hexagonal array; a first ring ratio is between 0.55 and 2.50, defined as a ratio of the length of radially aligned struts separating the capillaries of the first ring to the length of a strut in an undistorted hexagonal array; and a core node spacing is between 0.60 and 1.90, where defined as a ratio of a strut length around the core of a largest corner capillary and a strut length around the core of a smallest side capillary. The fabrication method comprises four different pressures for the core, corner capillary, side capillary and cladding.

公开(公告)号：US11034607B2

公开(公告)日：2021-06-15

申请号：US15023541

申请日：2014-09-19

Applicant: University of Southampton

Inventor： Eric Rodrigue Numkam Fokoua ,  Francesco Poletti ,  David John Richardson ,  Yong Chen ,  Natalie Violet Wheeler ,  John Richard Hayes ,  Marco Petrovich

IPC: C03B37/012 ,  C03B37/027 ,  G02B6/02

Abstract: A method of fabricating a hollow-core photonic-bandgap fiber, comprising the steps of: providing a stack of capillaries, wherein the stack has a hollow core and the capillaries at a boundary of the core comprise a plurality of first, corner core capillaries and a plurality of second, intermediate core capillaries; applying a pressure differential between the corner core capillaries and the intermediate core capillaries, whereby a size of the corner core capillaries can be controlled in relation to the intermediate core capillaries; and reducing the stack to a fiber, wherein the fiber has a hollow core and a cladding which surrounds the core at a core boundary and comprises a lattice or network of struts and interstitial nodes which together define an array of cavities.

公开(公告)号：US20160236964A1

公开(公告)日：2016-08-18

申请号：US15023541

申请日：2014-09-19

Applicant: UNIVERSITY OF SOUTHAMPTON

Inventor： Eric Rodrigue Numkam Fokoua ,  Francesco Poletti ,  David John Richardson ,  Yong Chen ,  Natalie Violet Wheeler ,  John Richard Hayes ,  Marco Petrovich

IPC: C03B37/012 ,  C03B37/027 ,  G02B6/02

CPC classification number: C03B37/0122 ,  C03B37/02781 ,  C03B2203/04 ,  C03B2203/16 ,  C03B2203/42 ,  G02B6/02328 ,  G02B6/02347 ,  G02B6/02357 ,  G02B6/02371

Abstract: A method of fabricating a hollow-core photonic-bandgap fiber, comprising the steps of: providing a stack of capillaries, wherein the stack has a hollow core and the capillaries at a boundary of the core comprise a plurality of first, corner core capillaries and a plurality of second, intermediate core capillaries; applying a pressure differential between the corner core capillaries and the intermediate core capillaries, whereby a size of the corner core capillaries can be controlled in relation to the intermediate core capillaries; and reducing the stack to a fiber, wherein the fiber has a hollow core and a cladding which surrounds the core at a core boundary and comprises a lattice or network of struts and interstitial nodes which together define an array of cavities.

Abstract translation: 一种制造中空光子带隙光纤的方法，包括以下步骤：提供一堆毛细管，其中所述堆叠具有中空芯，并且所述芯的边界处的毛细管包括多个第一角芯芯毛细管和 多个第二中间核心毛细管; 在角落芯毛细管和中间核心毛细管之间施加压力差，由此相对于中间核心毛细管可以控制拐角芯毛细管的尺寸; 并且将所述堆叠减小到纤维，其中所述纤维具有中空芯和在芯边界处围绕所述芯的包层，并且包括一起限定空腔阵列的支柱和间隙节点的格子或网络。