Method for preparing double-cladding active fiber

A double-clad, optical fiber technology, applied in clad optical fiber, multi-layer core/clad optical fiber, glass manufacturing equipment, etc., can solve problems such as easy generation of air bubbles, poor weather resistance, fracture, etc., to improve weather resistance and improve Quality, the effect of overcoming coating aging

Inactive Publication Date: 2017-02-01
WUHAN BRIGHTCORE OPTICAL FIBER CO LTD
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  • Abstract
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Problems solved by technology

[0005] The invention provides a method for preparing a double-clad active optical fiber, which solves the technical problems in the prior art that the inner coating is easy to age, has poor weather resistance, and easily generates bubbles, impurities, fractures and defects in the wire drawing process.

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  • Method for preparing double-cladding active fiber
  • Method for preparing double-cladding active fiber
  • Method for preparing double-cladding active fiber

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Embodiment Construction

[0035] The embodiment of the present application provides a method for preparing a double-clad active optical fiber to solve the technical problems in the prior art that the inner coating is easy to age, has poor weather resistance, and easily generates bubbles, impurities, fractures and defects during the wire drawing process; Improve the technical effect of weather resistance and product quality.

[0036] In order to better understand the above technical solutions, the above technical solutions will be described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the embodiments of the present invention and the specific features in the embodiments are detailed descriptions of the technical solutions of the present application. , rather than limiting the technical solutions of the present application, the embodiments of the present application and the technical features in the embodiments can be combin...

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Abstract

The invention belongs to the technical field of fiber preparation and discloses a method for preparing a double-cladding active fiber. The method comprises the following steps: preparing an optical fiber perform core rod; carrying out acid cleaning on the core rod in a hydrofluoric acid (HF) solution; preparing a non-circular sleeve pipe; carrying out acid cleaning on the non-circular sleeve pipe in the hydrofluoric acid solution; depositing a glass layer outside the sleeve pipe; carrying out combined assembly on the sleeve pipe and the optical fiber perform core rod to form an optical fiber perform assembly; and carrying out online fusion condensation, drawing and coating on the optical fiber perform assembly on a drawing tower to form the double-cladding active fiber. The provided fiber preparation method improves fiber production efficiency, weatherability and quality reliability.

Description

technical field [0001] The invention relates to the technical field of optical fiber preparation, in particular to a method for preparing a double-clad active optical fiber. Background technique [0002] Fiber laser is the third generation of new laser, which represents the development direction of the cutting-edge laser technology in the world today, and plays a leading role in the formation and development of the new laser industry in the future. In the field of special optical fibers required by fiber lasers, double-clad large-mode field active fibers are mainly used. This type of optical fiber is the most critical raw material for the development and production of fiber lasers. It is used at specific wavelengths and is made of special materials. Doped A certain formula of rare earth metals is developed by a special process and has special functions. [0003] The general preparation process and process of double-clad large-mode field active optical fiber is to use MCVD (...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/036C03B37/027C03B37/012C03B37/018
Inventor 刘锐李云丽包箭华朱建友李沅桉魏斌建王静吴杰曾红姣
Owner WUHAN BRIGHTCORE OPTICAL FIBER CO LTD
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