Apparatus and methods using hollow-core fiber tapers

Optical waveguides – With optical coupler – Particular coupling structure

Reexamination Certificate

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C359S333000

Reexamination Certificate

active

08009948

ABSTRACT:
An optical device and methods of using an optical device are provided. The optical device includes a hollow-core fiber including a first portion and a second portion. The first portion includes a hollow core having a first diameter. The second portion includes a hollow core having a second diameter smaller than the first diameter. The difference between the first diameter and the second diameter is less than 10% of the first diameter.

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