Optical fiber insert core and preparation method thereof as well as quick joint

A fiber optic ferrule and ferrule technology, which is applied in the field of quick connectors, preparation, and fiber optic ferrules, can solve the problems of impossibly precise aperture, complex structure, and high price of glass capillary tubes.

Active Publication Date: 2011-05-18
MP OPTICAL COMM SHENZHEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that the aperture of the glass capillary cannot be very precise, and the diameter of the optical fiber is 125 microns. Considering the possible positive and negative errors of the capillary, the glass capillary is generally 130 mi

Method used

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  • Optical fiber insert core and preparation method thereof as well as quick joint
  • Optical fiber insert core and preparation method thereof as well as quick joint
  • Optical fiber insert core and preparation method thereof as well as quick joint

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Embodiment Construction

[0043] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0044] Ceramic ferrules are more precise than glass capillaries. The error of the aperture of the ordinary single-mode ceramic ferrule is +1 / -0 microns, and the diameter error of the single-mode fiber is less than 1 micron, so the common single-mode ceramic ferrule and the single-mode fiber are closely matched. The large number of applications of ceramic ferrules in optical fiber connectors makes the price very low, about 1 / 3 of the glass capillary. However, using the ceramic ferrule directly as a collimation device has an unsatisfactory optical coupling effect, even worse than that of a glass capillary. This is because when the two optical fibers are respectively inserted from both ends of the ferrule and aligned in the ferrule, the optical coupling matching liquid filled between the interface of the two optical fibers cannot exit due to the tight fit betwe...

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Abstract

The invention relates to an optical fiber insert core and a preparation method thereof as well as a quick joint. The optical fiber insert core comprises a cylindrical insert core body, and the front end of the cylindrical insert core body is in a frustum shape. The optical fiber insert core is characterized in that the cylindrical insert core body is internally provided with an insert core hole and a tail taper hole; the insert core hole and the tail taper hole are centrally arranged front and back along the horizontal axial direction of the cylindrical insert core body; the cross section of the insert core hole is in a rectangular shape or a triangular shape or an elliptical shape or an ovoid shape, or the cross section of the insert core hole is in a circular shape, and the circular inner wall of the insert core hole is provided with at least one side groove along the horizontal axial direction of the cylindrical insert core body; the front end of the side groove penetrates through the front end surface of the cylindrical insert core body, and the rear end of the side groove is communicated with the front end of the tail taper hole. In the invention, the optical fiber insert core substitutes the insert core as an optical fiber coupling butt-joint collimating device for a glass capillary tube, thereby manufacturing an optical fiber butt-joint low-loss mechanical type wiring terminal and manufacturing a series of high-quality (low-insertion loss and high-reflection loss) field assembled quick joints by adopting an optical fiber embedding method.

Description

technical field [0001] The invention relates to the technical field of on-site mechanical splicing of optical fibers, in particular to an optical fiber ferrule, a preparation method and a quick connector. Background technique [0002] There are three basic methods for optical fiber splicing in optical communication: one is that the optical fiber is polished and polished by the factory, and the optical fiber connector is connected in the adapter through the ceramic sleeve of the adapter; the other is on-site optical fiber fusion; style continuation. The present invention relates to the field mechanical splicing for optical fiber. [0003] The methods currently used for optical fiber on-site mechanical splicing are divided into two categories: [0004] One is to butt two optical fibers in a collimation sleeve. At present, the collimation sleeve is mostly a glass capillary filled with optical coupling matching liquid, and the optical fiber is fixed after being penetrated. Th...

Claims

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Application Information

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IPC IPC(8): G02B6/38G02B6/36
Inventor 于小红
Owner MP OPTICAL COMM SHENZHEN
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