公开(公告)号：US11215751B2

公开(公告)日：2022-01-04

申请号：US16647118

申请日：2018-09-11

Applicant: University of Southampton

Inventor： Francesco Poletti ,  Gregory Teofil Jasion ,  Natalie Wheeler ,  Thomas David Bradley ,  Mubassira B Syed Nawazuddin ,  John Hayes

IPC: G02B6/02 ,  C03B37/012 ,  G02B6/024

Abstract: A preform (10) for an antiresonant hollow core optical fibre comprises an outer jacket tube (12) having an inner surface and a central longitudinal axis (24); a plurality of antiresonant cladding tubes (14) spaced apart at predefined peripheral locations around the inner surface of the outer jacket tube (12), each antiresonant cladding tube (14) in contact with the inner surface such that a central longitudinal axis (26) of each antiresonant cladding tube (14) is at a first radial distance from the central longitudinal axis (24) of the outer jacket tube (12); and a plurality of spacing elements (22) disposed alternately with the antiresonant cladding tubes (14) and each in contact with an outer surface of each of two adjacent antiresonant cladding tubes (14) at one or more contact points (28), the contact points (28) at a second radial distance from the central longitudinal axis (24) of the outer jacket tube (12), the second radial distance being greater than the first radial distance.

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：US20220317369A1

公开(公告)日：2022-10-06

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.