Optical fiber ferrule and optical fiber connector

Abstract

Embodiments of this application provide an optical fiber ferrule, where n rows of optical fiber holes are symmetrically distributed on a mating end face of the ferrule, n>=3, and n is an odd number. Based on the layout design of optical fiber holes on the optical fiber ferrule, this application provides an optical fiber connector that includes a plurality of rows of optical fiber holes and that is compatible with one row and a relatively small number of rows of optical fiber holes, so that an optical fiber connector with a large number of cores can be forward compatible with an optical fiber connector with a small number of cores, thereby improving expandability and compatibility of the optical fiber ferrule.

1 . An optical fiber ferrule, comprising
 a mating end face; and   a plurality of rows of optical fiber holes symmetrically distributed on the mating end face of the optical fiber ferrule, wherein a number of the plurality of rows of the optical fiber holes is n, wherein n>=3, wherein n is an odd number, wherein the plurality of rows of the optical fiber holes are arranged parallel to each other,   wherein the mating end face of the optical fiber ferrule includes two guide holes, and wherein a first row of the plurality of rows of the optical fiber holes is distributed on a center-connecting line between the two guide holes,   wherein rows of the plurality of rows of optical fiber holes other than the first row are symmetrically distributed on both sides of the center-connecting line between the two guide holes, and   wherein the optical fiber ferrule is configured to be fastened to a second optical fiber ferrule, the second optical fiber ferrule comprising a second mating end face and a second row of optical fiber holes which is distributed on the center-connecting line between the two guide holes.   
     
     
         2 . The optical fiber ferrule according to  claim 1 , wherein a center distance between every two adjacent rows of the plurality of rows of the optical fiber holes is 0.25 mm. 
     
     
         3 . The optical fiber ferrule according to  claim 1 , wherein the diameter of each guide hole is 0.6990 mm. 
     
     
         4 . The optical fiber ferrule according to  claim 1 , wherein the odd number includes 3. 
     
     
         5 . The optical fiber ferrule according to  claim 1 , wherein the odd number includes 5. 
     
     
         6 . The optical fiber ferrule according to  claim 1 , wherein each row of the plurality of rows of the optical fiber holes comprises 12 optical fiber holes. 
     
     
         7 . The optical fiber ferrule according to  claim 1 , wherein each row of the plurality of rows of the optical fiber holes comprises 16 optical fiber holes. 
     
     
         8 . An optical fiber connector, comprising
 a housing having a front end, the front end being a plug end, the housing including an optical fiber ferrule including a mating end face and a plurality of rows of optical fiber holes symmetrically distributed on the mating end face of the optical fiber ferrule, wherein a number of the plurality of rows of the optical fiber holes is n, wherein n>=3, wherein n is an odd number, wherein the plurality of rows of the optical fiber holes are arranged parallel to each other;   wherein the mating end face of the optical fiber ferrule includes two guide holes, and wherein a first row of the plurality of rows of the optical fiber holes is distributed on a center-connecting line between the two guide holes,   wherein rows of the plurality of rows of optical fiber holes other than the first row are symmetrically distributed on both sides of the center-connecting line between the two guide holes, and   wherein the optical fiber ferrule is configured to be fastened to a second optical fiber ferrule, the second optical fiber ferrule comprising a second mating end face and a second row of optical fiber holes which is distributed on the center-connecting line between the two guide holes.   
     
     
         9 . The optical fiber connector according to  claim 8 , wherein a center distance between every two adjacent rows of the plurality of rows of the optical fiber holes is 0.25 mm. 
     
     
         10 . The optical fiber connector according to  claim 8 , wherein the diameter of each guide hole is 0.6990 mm. 
     
     
         11 . The optical fiber connector according to  claim 8 , wherein the odd number includes 3. 
     
     
         12 . The optical fiber connector according to  claim 8 , wherein the odd number includes 5. 
     
     
         13 . The optical fiber connector according to  claim 8 , wherein each row of the plurality of rows of the optical fiber holes comprises 12 optical fiber holes. 
     
     
         14 . The optical fiber ferrule according to  claim 8 , wherein each row of the plurality of rows of the optical fiber holes comprises 16 optical fiber holes. 
     
     
         15 . An optical fiber connector system comprising:
 a first optical fiber ferrule comprising a first mating end face and a first plurality of rows of optical fiber holes symmetrically distributed on the first mating end face, wherein a number of the first plurality of rows of the optical fiber holes is n, wherein n>=3, wherein n is an odd number, and wherein the first plurality of rows of the optical fiber holes are arranged parallel to each other;   the first mating end face of the first optical fiber ferrule includes two guide holes, and wherein a first row of the first plurality of rows of the optical fiber holes is distributed on a center-connecting line between the two guide holes; and   a second optical fiber ferrule fastened to the first optical fiber ferrule, the second optical fiber ferrule comprising a second mating end face and a second row of optical fiber holes which is distributed on the center-connecting line between the two guide holes;   wherein a first arrangement of the first plurality of rows of optical fiber holes of the first optical fiber ferrule is compatible with the second row of optical fiber holes.   
     
     
         16 . The optical fiber connector system according to  claim 15 , wherein a center distance between every two adjacent rows of the plurality of rows of the optical fiber holes is 0.25 mm. 
     
     
         17 . The optical fiber connector system according to  claim 15 , wherein the diameter of each guide hole is 0.6990 mm. 
     
     
         18 . The optical fiber connector system according to  claim 15 , wherein the odd number includes 3. 
     
     
         19 . The optical fiber connector system according to  claim 15  wherein each row of the first plurality of rows of the optical fiber holes and the second row of the optical fiber holes comprises 12 optical fiber holes or each row of the first plurality of rows of the optical fiber holes and the second of row of the optical fiber holes comprises 16 optical fiber holes. 
     
     
         20 . The optical fiber connector system according to  claim 15 , wherein rows of the first plurality of rows of optical fiber holes other than the first row are symmetrically distributed on both sides of the center-connecting line between the two guide holes.