| 摘要 |
An optical fiber connector element comprises a ferrule and an optical fiber stub secured within a through passage of the ferrule. The optical fiber stub comprises a core, an inner cladding having a diameter no more than six times the core diameter and a refractive index less than the core refractive index, and an outer cladding having a refractive index greater than the inner cladding refractive index and less than or equal to the ferrule refractive index. A length of the outer cladding is in intimate contact with the ferrule. A rearward part of the ferrule passage may have an inner diameter greater than the outer diameter of the fiber stub, and a plastic plug having a through passage for receiving the fiber stub may be located in the rearward part of the ferrule passage. The plastic plug has a refractive index equal to or greater than the outer cladding refractive index and less than the ferrule refractive index. The optical fiber connector element provides the convenience of a stub connector while reducing modal interference effects.
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