Method for treating optical fiber and apparatus for treating optical fiber
AssigneeFujikura Ltd.
InventorsTakahiro Hamada, Munehisa Fujimaki, Kenji Yamashiro, Koichi Harada, Yukinari Shirako, Hiroyuki Sawano
Life of this patent
Estimating the term…
Abstract
A method of treating optical fiber includes at least a first step of creating a reduced-pressure atmosphere in a space which holds the optical fiber, and a second step of introducing to the space a deuterium-containing gas so as to expose the optical fiber to the gas.
Claims17
A method of treating optical fiber, comprising at least a first step of creating a reduced-pressure atmosphere in a space which holds an optical fiber, and a second step of introducing to the space a deuterium-containing gas so as to expose the optical fiber to the gas.
A method of treating optical fiber, wherein a deuterium-containing gas can be repeatedly used for treating optical fiber comprising:
- a first step of creating a reduced-pressure atmosphere in a space which holds an optical fiber, a second step of introducing to the space a deuterium-containing gas from a deuterium storage tank so as to expose the optical fiber to the gas, and
- a third step of retrieving the deuterium-containing gas within the space to the deuterium storage tank.
An apparatus for treating optical fiber, comprising a first space for exposing an optical fiber to a deuterium-containing gas, a second space for storing the deuterium-containing gas, and a third space for connecting the first space and the second space;
- wherein the apparatus has, in the third space, element for supplying gas.
A method of treating optical fiber, wherein a deuterium-containing gas can be repeatedly used for treating optical fiber comprising:
- a first step of creating a reduced-pressure atmosphere in a space which holds an optical fiber,
- a second step of introducing to the space a deuterium-containing gas from a deuterium storage tank so as to expose the optical fiber to the gas,
- a third step of retrieving the deuterium-containing gas within the space to the deuterium storage tank, and
- repeating the first, second, and third steps.
Dependencies are inferred from the claim text.