Production technology of optical fiber
A manufacturing process and optical fiber technology, which is applied in the direction of testing optical fiber/optical waveguide equipment, etc., can solve the problems of overcharging or undercharging of optical fibers, and difficulty in ensuring the effect of deuterium treatment, so as to improve the success rate, save costs, and improve production efficiency.
Active Publication Date: 2016-07-20
HANGZHOU FUTONG COMM TECH CO LTD
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Problems solved by technology
It solves the problem that it is difficult to guarantee the effect of deuterium treatment in the existing process, and the optical fiber may be overcharged or undercharged with deuterium
Method used
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[0044] Below in conjunction with each accompanying drawing, the present invention is described in detail.
[0045] Such as figure 1 As shown, this embodiment discloses a manufacturing process of an optical fiber, comprising the following steps:
[0046] 1) Open the deuterium treatment tank, put a plurality of optical fiber discs into the deuterium treatment tank, select at least one optical fiber disc, pass one end of the optical fiber in the optical fiber disc out of the side wall of the deuterium treatment tank, and seal the passing part ;
[0047] 2) Connect one end of the detection fiber to the fiber passing through the deuterium treatment tank in step 1) through a fiber optic connector, and connect the other end of the detection fiber to the detection device;
[0048] 3) close the deuterium treatment tank, and vacuumize it;
[0049] 4) Nitrogen is charged in the deuterium treatment tank;
[0050] 5) vacuumize again;
[0051] 6) Fill the deuterium treatment tank with ...
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The invention discloses a production technology of an optical fiber. The production technology comprises the following steps: 1) putting multiple optical fiber discs into a deuterium treatment tank, wherein the optical fiber in one optical fiber disc goes through the deuterium treatment tank; 2) detecting connection between an optical fiber and the optical fibers in the step 1); 3) vacuumizing; 4) nitrogen filling; 5) vacuumizing again; 6) introducing the deuterium-nitrogen mixed gas and keeping the temperature in the treatment tank at 28-32 DEG C and pressure at 0.02-0.03Mpa; and 7) 36-48 hours later, detecting the optical fiber by detection equipment at an interval of 30-60 minutes; if the detected optical fiber is qualified, pumping out the gas in the deuterium treatment tank and ending the deuterium treatment; and if the detected optical fiber is not qualified, continuing the deuterium treatment. In the production technology, since the optical fiber in the deuterium treatment tank goes through the deuterium treatment tank, online monitoring can be realized; and compared with the technology of detection after deuterium treatment in the prior art, the success rate of deuterium treatment can be increased, the production efficiency is improved, and the cost is saved.
Description
technical field [0001] The invention relates to the field of optical fibers, in particular to a manufacturing process of optical fibers. Background technique [0002] After drawing, cooling, coating and solidifying the preform rod, the optical fiber is obtained. When manufacturing an optical fiber, the optical fiber may contain OH groups due to heat sources or impurities in raw materials used to manufacture the optical fiber. In high-energy radiation, the content of OH groups may increase. Due to the loss characteristics of the optical fiber caused by OH group, it is difficult to operate the optical fiber in the range of E-band (1360nm-1460nm). Even when the optical fiber has a small amount of OH groups, this phenomenon is worse if the optical fiber is exposed to hydrogen gas. The increase in fiber loss as a function of time due to hydrogen gas is known as "hydrogen aging loss" and can cause serious problems when the fiber is used for an extended period of time. [0003]...
Claims
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Login to View More IPC IPC(8): C03C25/66
CPCC03C25/66G01M11/30
Inventor 何园园闫瑞韩肖明
Owner HANGZHOU FUTONG COMM TECH CO LTD