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Optical fiber ferrule, optical fiber ferrule butt-joint device, and forming method of optical fiber ferrule

A technology of optical fiber ferrule and docking device, which is applied in the direction of cladding optical fiber, glass optical fiber, optical waveguide and light guide, etc., can solve the problems of optical fiber docking lateral misalignment, loss, etc., and achieve the elimination of inner diameter tolerance, loss reduction, and improvement of optical fiber coupling efficiency Effect

Pending Publication Date: 2019-12-03
安徽光纤光缆传输技术研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the limitation of the manufacturing process, this method is inevitably affected by the tolerance of the outer diameter of the fiber (about ±1μm) and the tolerance of the inner diameter of the ferrule (about 0-1μm), which will lead to the occurrence of lateral misalignment of the fiber butt joint. For the core diameter For a single-mode fiber with only 9 μm, this misalignment will cause a maximum loss of 0.23dB; this is a relatively serious loss for large-capacity information networks and systems that pursue low loss and low power consumption

Method used

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  • Optical fiber ferrule, optical fiber ferrule butt-joint device, and forming method of optical fiber ferrule
  • Optical fiber ferrule, optical fiber ferrule butt-joint device, and forming method of optical fiber ferrule
  • Optical fiber ferrule, optical fiber ferrule butt-joint device, and forming method of optical fiber ferrule

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Embodiment 1

[0049] Such as figure 2 and 3 As shown, an optical fiber ferrule includes an optical fiber 1, a ferrule 2 and a ferrule base 3. In the axial direction, the optical fiber 1 includes an optical fiber output section 11 and an optical fiber tail section 12, and the length of the optical fiber output section 11 is 16mm±0.5mm, the fiber tail section 12 is a bare fiber, and the fiber tail section 12 is the coating layer, the cladding and the fiber core from the outside to the inside; the fiber output section 11 is the cladding and the fiber core from the outside to the inside, also That is, the optical fiber output section 11 does not include a coating layer, the coating layer is stripped, the composition of the core is silica, the composition of the cladding is doped silica, the core and the The cladding is made of glass fiber, and the refractive index of the core and the cladding has a small difference, and the above-mentioned structure of the optical fiber is the prior art.

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Embodiment 2

[0072] Such as Figure 8-12 As shown, a fiber optic ferrule docking device includes a coupler 6 and two fiber optic connectors, and the fiber optic connectors include a connector frame 7, a docking spring 8, a boot 9, a connecting nut 10 and the The fiber ferrule.

[0073] The coupler 6 includes a V-shaped groove 61, a pressure plate 62, two fixed springs 63, a cover plate 64 and a box body 65; the inside of the coupler 6 is provided with an integrated precision V-shaped groove 61, and the V-shaped groove 61 runs through the box body 65 front and rear ends, box body 65 is positioned at the top of V-shaped groove 61 and is provided with cavity, and box body 65 is positioned at the side wall of V-shaped groove 61 two ends to have rectangular groove respectively, and the upper end of described rectangular groove is positioned at box body 65 On the upper surface, the lower end of the rectangular groove is the upper opening of the V-shaped groove 61, and a pressing plate 62 is arr...

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Abstract

The invention provides an optical fiber ferrule comprising an optical fiber, a ferrule body and a ferrule base. The optical fiber includes an optical fiber output section and an optical fiber tail section. The ferrule includes a chemical nickel-plated layer and an electroplated nickel layer; the chemical nickel-plated layer is plated on the periphery of the optical fiber output section through chemical plating; and the electroplated nickel layer is plated on the periphery of the chemical nickel-plated layer through an electroplating method. The ferrule base is arranged at the outer side of theferrule in a sleeving mode; and the tail portion of the ferrule base is fixedly connected with the ferrule. According to the optical fiber ferrule, the optical fiber coupling efficiency is greatly improved. In addition, the invention further provides an optical fiber ferrule butt-joint device comprising a coupler and two optical fiber connectors including the optical fiber ferrules; an integrally-formed V-shaped groove is formed in the coupler; a pressing plate can slide up and down in the V-shaped groove; and the part, arranged in front of the ferrule base, of the ferrule body is arranged inthe V-shaped groove. And the invention further provides a forming method of the optical fiber ferrule.

Description

technical field [0001] The invention relates to the technical field of optical fiber connection and transmission, in particular to an optical fiber ferrule, an optical fiber ferrule butt joint device and a molding method for the optical fiber ferrule. Background technique [0002] The loss at the fiber optic interconnection node (generally realized by the butt joint of the fiber optic connector) is divided into two types: the intrinsic factor of the fiber and the extrinsic factor. Factors caused by different optical characteristics; extrinsic factors include end face gap, lateral misalignment, end face inclination, refractive index and thickness of degenerated layer, and external termination force and other factors introduced by various optical fiber connectors. In order to uniformly consider the influence of these factors, the concept of insertion loss is defined. Insertion loss refers to the ratio in decibels of the output optical power to the incident optical power after ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/38G02B6/02C23C18/36C25D3/12C23C28/02
CPCG02B6/3833G02B6/3854G02B6/3869G02B6/3881G02B6/3821G02B6/3863G02B6/02G02B6/02395C23C18/36C25D3/12C23C28/023
Inventor 张铭陆兆辉张志升孙亚斌李娜李明
Owner 安徽光纤光缆传输技术研究所