Gas cladding low-loss polarization optical fiber

A polarized optical fiber, low loss technology, applied in polarized optical fiber, clad optical fiber, multi-layer core/clad optical fiber, etc., can solve the difficulty of splicing, can not withstand high temperature baking and cosmic ray radiation, and the temperature performance of optical fiber is not good Good and other problems, to achieve the effect of low absorption loss, low material scattering loss, and reduce consumption

Pending Publication Date: 2020-09-22
辽宁玮尔量子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The technical problem to be solved by the present invention is that the existing optical fiber has many technical performance defects such as poor temperature performance, inability to withstand high temperature baking and cosmic ray radiation, and very difficult splicing.

Method used

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  • Gas cladding low-loss polarization optical fiber
  • Gas cladding low-loss polarization optical fiber
  • Gas cladding low-loss polarization optical fiber

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Embodiment Construction

[0052] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0053] The detection fiber length is 22.8Km;

[0054] Protective Coating Material: Polyimide Optical Fiber Coating

[0055]

[0056] Temperature test: total length 22.8km

[0057] Low temperature: -85 degrees (Celsius) for 72 hours, the change of instrument reading at the output end is ±0.01dB

[0058] High temperature: +92 degrees (Celsius) 72 hours output instrument reading change +0.003dB

[0059] A method for preparing a gas-clad low-loss polarization optical fiber:

[0060] A gas-clad low-loss polarization fiber is produced in 8 steps:

[0061] Step 1. Preparation of raw materials: select a commercially available solid outer cladding ultra-high purity quartz glass sleeve with a length of 1200 mm and an o...

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Abstract

The invention relates to a gas cladding low-loss polarization optical fiber. The gas cladding low-loss polarization optical fiber is composed of a sheet-shaped core, gas claddings tightly attached tothe upper smooth surface and the lower smooth surface of the sheet-shaped core, a solid outer cladding and an organic resin protective coating. According to the gas cladding low-loss polarization optical fiber provided by the invention, the optical fiber can be used as a polarizer due to the original optical fiber sheet core structure design, so that the extremely stable polarization performance of polarized light transmission is ensured, all non-transverse mode energy is completely cut off, and external interference and noise are eliminated; ultra-pure quartz glass is used as a core, and purest gas is used as a cladding to form the most perfect optical waveguide in the world, so that the optical fiber loss caused by material absorption and waveguide defects is reduced to the minimum; especially, the manufacturing process of the gas cladding polarization optical fiber is a pure physical process, the chemical deposition processes of OVD, VAD, MCVD or PCVD and the like in optical fiber production are eliminated, serious pollution of optical fiber production to the environment is eliminated, and the production cost is greatly reduced.

Description

technical field [0001] The invention relates to an optical fiber, in particular to a gas-clad low-loss polarized optical fiber. Background technique [0002] Optical fiber is a great contemporary invention. Starting from multimode optical fiber G651 and single-mode optical fiber G652, various single-mode optical fibers with different transmission performances such as G653, G654 to G657 have appeared one after another. In 1979, Kaminow and others proposed the concept of polarization-maintaining optical fiber. The polarization-maintaining optical fiber coherent communication system can greatly increase the transmission capacity of each optical fiber. Studies have shown that the current single-mode optical fiber transmission communication system, regardless of the type of optical fiber, has a maximum transmission capacity of only 1GHz, while coherent communication systems use heterodyne detection technology, and the theoretical transmission capacity of each optical fiber can re...

Claims

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Application Information

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IPC IPC(8): G02B6/024G02B6/036
CPCG02B6/024G02B6/036
Inventor 不公告发明人
Owner 辽宁玮尔量子科技有限公司
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