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AssigneeUniversity of Southampton
InventorsGregory Teofil JASION, Andrew Thomas HARKER, Francesco POLETTI
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A method of fabricating a hollow core optical fibre comprises: providing a thin preform formed from glass and having a transverse cross-sectional structure configured to form, in a hollow core optical fibre drawn from the thin preform, a transverse cross-sectional structure comprising a hollow core surrounded by a plurality of voids defining a microstructured cladding, the thin preform have a width in the range of 0.5 to 5 mm and a total length available for drawing into the hollow core optical fibre; heating an end portion of the thin preform in order to soften the glass of the end portion; and drawing a length of hollow core optical fibre from the softened glass of the thin preform, the hollow core optical fibre having a width less than the width of the thin preform.
A method of fabricating a hollow core optical fibre, the method comprising:
A method for fabricating a preform for a hollow core optical fibre, the method comprising:
A thin preform formed from glass and having a transverse cross-sectional structure configured to form, in a hollow core optical fibre drawn from the thin preform, a transverse cross-sectional structure comprising a hollow core surrounded by a plurality of void defining a microstructured cladding, the thin preform have width in the range of 0.5 mm to 5 mm, and a length of at least 30 m.
A hollow core optical fibre having a transverse cross-sectional structure comprising a hollow core surrounded by a plurality of voids defining a microstructured cladding, the hollow core optical fibre having a length of at least 20 km.
Dependencies are inferred from the claim text.