公开(公告)号：US11585976B2

公开(公告)日：2023-02-21

申请号：US17220870

申请日：2021-04-01

Applicant: Saudi Arabian Oil Company ,  University of Southampton

Inventor： Hesham Sakr ,  Hans Christian Hansen Mulvad ,  Shaif-ul Alam ,  Lin Xu ,  Callum Smith ,  John Hayes ,  David Richardson ,  Francesco Poletti ,  Damian Pablo San Roman Alerigi ,  Sameeh Issa Batarseh

IPC: G02B6/02

Abstract: An optical fiber has corrugations on an outer surface to dissipate a portion of an input light beam, allowing the remaining portion of the light beam to be coupled to the optical fiber. By dissipating the portion of input light, damage to the optical fiber by uncoupled light is reduced.

公开(公告)号：US11555958B2

公开(公告)日：2023-01-17

申请号：US17220864

申请日：2021-04-01

Applicant: Saudi Arabian Oil Company ,  University of Southampton

Inventor： Hesham Sakr ,  Hans Christian Hansen Mulvad ,  Shaif-ul Alam ,  Lin Xu ,  Callum Smith ,  John Hayes ,  David Richardson ,  Francesco Poletti ,  Damian Pablo San Roman Alerigi ,  Sameeh Issa Batarseh

IPC: G02B6/032

Abstract: A nested anti-resonant nodeless hollow core fiber (NANF) enables transmission of multi-kilowatt, continuous wave (CW) light beams operating in wavelengths between 1050 nm and 1100 nm provided by single mode lasers. Such a NANF has little loss over kilometer ranges, and can be employed in long distance subsurface applications, such as in the petroleum industry.

公开(公告)号：US20220317365A1

公开(公告)日：2022-10-06

申请号：US17220870

申请日：2021-04-01

Applicant: Saudi Arabian Oil Company ,  University of Southampton

Inventor： Hesham Sakr ,  Hans Christian Hansen Mulvad ,  Shaif-ul Alam ,  Lin Xu ,  Callum Smith ,  John Hayes ,  David Richardson ,  Francesco Poletti ,  Damian Pablo San Roman Alerigi ,  Sameeh Issa Batarseh

IPC: G02B6/02

Abstract: An optical fiber has corrugations on an outer surface to dissipate a portion of an input light beam, allowing the remaining portion of the light beam to be coupled to the optical fiber. By dissipating the portion of input light, damage to the optical fiber by uncoupled light is reduced.

公开(公告)号：US20220011502A1

公开(公告)日：2022-01-13

申请号：US17333060

申请日：2021-05-28

Applicant: University of Southampton

Inventor： Francesco Poletti ,  Seyedmohammad Abokhamis Mousavi

IPC: G02B6/02 ,  G02B6/024 ,  G02B6/255 ,  H01S3/067 ,  H01S3/16

Abstract: An anti-resonant hollow-core fiber comprising a first tubular, cladding element which defines an internal cladding surface, a plurality of second tubular elements which are attached to the cladding surface and together define a core with an effective radius, the second tubular elements being arranged in spaced relation and adjacent ones of the second tubular elements having a spacing therebetween, and a plurality of third tubular elements, each nested within a respective one of the second tubular elements.

公开(公告)号：US20210311248A1

公开(公告)日：2021-10-07

申请号：US17266408

申请日：2019-08-05

Applicant: University of Southampton

Inventor： Austin Taranta ,  Eric Numkam-Fokoua ,  Francesco Poletti ,  David Neil Payne

IPC: G02B6/02

Abstract: An interferometric optical fibre sensor comprises optical fibre defining an optical circuit configured to propagate a first optical wave via an environment in which the optical fibre can be exposed to a stimulus that modifies the first optical wave, and a second optical wave, and to combine the first optical wave and the second optical wave to create an interference signal containing information about the stimulus, wherein optical fibre propagating either or both of the first optical wave and the second optical wave comprises hollow core optical fibre configured to propagate the optical wave or waves by an antiresonant optical guidance effect.

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：US11964899B2

公开(公告)日：2024-04-23

申请号：US16628423

申请日：2018-07-04

Applicant: University of Southampton

Inventor： Natalie Wheeler ,  Peter Shardlow ,  Francesco Poletti

IPC: C03B37/012 ,  C03B23/207 ,  G02B6/02 ,  C03B37/027 ,  C03B37/03

CPC classification number: C03B37/0122 ,  C03B23/207 ,  C03B37/01225 ,  G02B6/02328 ,  C03B2203/16 ,  C03B2203/42

Abstract: A method of making an optical fibre preform comprising providing a hollow outer tube of glass, providing a hollow primary capillary tube of glass with an outer diameter smaller than an inner diameter of the outer tube, positioning the primary capillary tube inside the outer tube such that an outer surface of the primary capillary tube lies against an inner surface of the outer tube along a contact line parallel to the longitudinal axes of the primary capillary tube and the outer tube, and bonding the primary capillary tube into its position inside the outer tube by directing a laser beam onto a surface of the outer tube or the primary capillary at one or more locations aligned with the contact line.

公开(公告)号：US11668871B2

公开(公告)日：2023-06-06

申请号：US17441886

申请日：2020-04-22

Applicant: University of Southampton

Inventor： Francesco Poletti

IPC: G02B6/02 ,  B29D11/00 ,  C03B23/07 ,  C03B37/012 ,  C03B37/027

CPC classification number: G02B6/02304 ,  B29D11/00721 ,  C03B23/076 ,  C03B37/01211 ,  C03B37/02781 ,  G02B6/02328

Abstract: A shaped tube (50,51) for use as a component in the fabrication of an antiresonant hollow core optical fibre, the shaped tube having a side wall with a transverse cross-sectional shape comprising a number of major curved portions (52) alternating with the same number of minor substantially straight portions (54), each curved portion (52) having an inwardly curving shape, and each straight portion (54) being equidistant from a central longitudinal axis of the shaped tube (50,51).

公开(公告)号：US11640029B2

公开(公告)日：2023-05-02

申请号：US17556324

申请日：2021-12-20

Applicant: University of Southampton

Inventor： Gregory Teofil Jasion ,  Francesco Poletti

IPC: G02B6/32 ,  G02B6/032 ,  C03B37/027 ,  G02B6/02

Abstract: A hollow core optical fibre comprises a tubular jacket; a cladding comprising a plurality of primary capillaries spaced apart from one another in a ring and each bonded to an inner surface of the jacket at a peripheral location around the circumference of the jacket; and a hollow core formed by a central void within the ring of primary capillaries; wherein the cladding further comprises, within each primary capillary, two secondary capillaries and no more, the two secondary capillaries spaced apart from one another and each bonded to an inner surface of the primary capillary at an azimuthal location around the circumference of the primary capillary which is displaced from the peripheral location of the primary capillary.

公开(公告)号：US11493684B2

公开(公告)日：2022-11-08

申请号：US17266408

申请日：2019-08-05

Applicant: University of Southampton

Inventor： Austin Taranta ,  Eric Numkam-Fokoua ,  Francesco Poletti ,  David Neil Payne

IPC: G02B6/02 ,  G01C19/72

Abstract: An interferometric optical fibre sensor comprises optical fibre defining an optical circuit configured to propagate a first optical wave via an environment in which the optical fibre can be exposed to a stimulus that modifies the first optical wave, and a second optical wave, and to combine the first optical wave and the second optical wave to create an interference signal containing information about the stimulus, wherein optical fibre propagating either or both of the first optical wave and the second optical wave comprises hollow core optical fibre configured to propagate the optical wave or waves by an antiresonant optical guidance effect.