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Fiber optic connector and eccentric parallel beam expanding contact element thereof

A technology of optical fiber connectors and contacts, applied in the coupling of optical waveguides, etc., can solve the problem of small return loss value, achieve the effect of improving return loss, increasing return loss value, and reducing reflectivity

Inactive Publication Date: 2019-06-25
CHINA AVIATION OPTICAL-ELECTRICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an eccentric parallel beam expander contact to solve the problem that the return loss value of the beam expander contact in the prior art is small; the purpose of the present invention is also to provide a Contacts for Fiber Optic Connectors

Method used

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  • Fiber optic connector and eccentric parallel beam expanding contact element thereof
  • Fiber optic connector and eccentric parallel beam expanding contact element thereof
  • Fiber optic connector and eccentric parallel beam expanding contact element thereof

Examples

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Embodiment Construction

[0020] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0021] A specific embodiment of the eccentric parallel beam expanding contact of the present invention, such as Figure 1 to Figure 3 As shown, the contact piece mainly includes a bushing 1, a lens 3 and a ferrule 2. In this embodiment, the axial direction of the bushing 1 is defined as the front-to-back direction, and the ferrule 2 and the lens 3 are sequentially assembled on the bushing along the front-back direction. 1, the ferrule 2 is located at the inner control rear end of the sleeve 1, and the lens 3 is located at the inner control front end of the sleeve 1.

[0022] For the sleeve 1, it is the assembly carrier of other parts, and all parts are assembled on the sleeve 1. The sleeve 1 is an inner and outer coaxial sleeve, that is, the axis of the inner hole of the sleeve 1 is consistent with the axis of the outer circle. , all along the front-to-...

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Abstract

The invention relates to a fiber optic connector and an eccentric parallel beam expanding contact element thereof. The eccentric parallel beam expanding contact element comprises a lens and a ferrule;the lens and the ferrule are coaxially assembled; the inner hole axis direction of a sleeve is defined to be a front-back direction; the ferrule is located at the rear side of the lens; the front endsurface of the ferrule is a sloped surface; the rear end surface of the lens is a vertical surface to enable a light path to be expanded through the lens and to be emitted eccentrically and parallelly, and thus, the light path, passing through the lens, is expanded towards one side and offsets and is then emitted as parallel light. Due to the structure, the environment resistance performance of aproduct can be improved, and the return loss of the product is greatly improved.

Description

technical field [0001] The invention relates to an optical fiber connector and an eccentric parallel beam expanding contact piece thereof. Background technique [0002] The main function of the parallel beam expander contact is to convert the light emitted in the optical fiber into collimated light, which includes a pigtail ferrule, a sleeve and a lens, etc., wherein the pigtail ferrule and the lens are coaxially assembled in the sleeve to ensure two The optical axes of the two are on the same straight line, and the front end of the pigtail ferrule is facing the rear end of the collimator lens. However, because the front end face of the pigtail and the rear end face of the lens of the beam expander contact in the prior art are both flat, the absolute value of the return loss is not greater than 20dB, which cannot be satisfied in some occasions that require high return loss performance. Requirements, the return loss describes the light that is opposite to the expected transm...

Claims

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Application Information

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IPC IPC(8): G02B6/32G02B6/38
Inventor 尚慧娟
Owner CHINA AVIATION OPTICAL-ELECTRICAL TECH CO LTD