Single-mode fiber contact and manufacture method thereof

Abstract

The invention relates to the field of an optical connector and especially relates to a single-mode fiber contact and a manufacture method thereof. The single-mode fiber contact comprises an insertion core and a single-mode fiber passing through the insertion core; and one end, at least corresponding to the insertion end of the insertion core, of the single-mode fiber is a thermal diffusion fiber formed through thermal diffusion. One end, at least corresponding to the insertion end of the insertion core, of the single-mode fiber of the single-mode fiber contact is the thermal diffusion fiber formed through thermal diffusion, so that during using, the refractive index distribution of the single-mode fiber changes along fiber axis center, and mode field diameter increases (can change from 9 micrometers to 55 micrometers); during optical signal transmission, optical energy is distributed to the core diameter of the enlarged single mode fiber, so that under the condition of not burning out the single-mode fiber contact, the optical signals can be effectively transmitted; and the single-mode fiber contact in the invention solves the problem that a conventional single-mode fiber contact can be easily burnt out when transmitting high-power optical signals.

Description

technical field [0001] The invention relates to the field of optical connectors, in particular to a single-mode optical fiber contact piece and a manufacturing method thereof. Background technique [0002] Single-mode optical fiber contacts are signal transmission components used in ordinary single-mode optical fiber connectors, including ferrules (usually ceramic ferrules) and single-mode optical fibers that pass through the ferrule. Single-mode optical fibers generally use 9 / 125 Optical fiber, because the core diameter of single-mode optical fiber is only 9 microns, it can only transmit optical power of about 300 milliwatts. When transmitting high-power optical signals, the energy is too concentrated, and it is easy to burn out at the coupling part of the two optical fiber connectors. The problem, which leads to the failure of signal transmission. [0003] However, with the continuous expansion of optical signal transmission in various fields in recent years, the amount o...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a single-mode optical fiber contact to solve the problem that the existing single-mode optical fiber contact is easy to burn when transmitting high power

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