Panda polarization-maintaining fiber and lens coupling and welding system and method

Abstract

The invention relates to the field of optical device package and manufacturing, in particular to a coupling and welding system and method for a polarization-maintaining fiber of butterfly-shaped laser. A panda polarization-maintaining fiber and lens coupling and welding system comprises a welding platform support, wherein a lead screw is arranged on the welding platform support and is connected with a coupling mechanism in a driving way, the coupling mechanism is connected to and arranged at a coupling platform sliding rail on the welding platform support in a sliding way, a butterfly-shaped device fixed table is arranged in the coupling mechanism, a rotation device is arranged on the butterfly-shaped device fixed table, a welding adjustment mechanism is arranged behind the coupling mechanism, and a laser gun is arranged in the welding adjustment mechanism and is arranged above the coupling mechanism. The system is convenient to operate, coupling, fiber rotation and welding are integrated, the coupling efficiency is high, and the cost is low; with the adoption of the coupling and welding method, accurate angle rotation of the polarization-maintaining fiber can be achieved; and by adisplay, accurate welding is achieved, the production efficiency is improved, and coupling and welding of the butterfly-shaped device is efficiently and stably completed.

Description

technical field [0001] The invention relates to the technical field of packaging and manufacturing of optical devices in optical communications, in particular to a coupling welding system and method for a polarization-maintaining optical fiber of a butterfly laser. Background technique [0002] Polarization-maintaining fiber is mainly used to transmit linearly polarized light, especially stress birefringence polarization-maintaining fiber mainly includes bow-tie type polarization-maintaining fiber, panda-type polarization-maintaining fiber and elliptical cladding type polarization-maintaining fiber. Among them, Panda polarization maintaining fiber is the most widely used, such as Figure 6 As shown, its structure includes a core, a stress region and a cladding part, the core is located in the central part of the cladding, and two cylindrical stress regions are distributed on both sides of the core, resulting in the so-called stress birefringence so that Polarization-maintain...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the technical problems of inconvenient operation and low production efficiency by manually holding the optical fiber and rotating the optical fiber to realize the coupling between the optical fiber and the lens in the existing coupling welding system, and to provide a panda type polarization maintaining Optical fiber and lens coupling welding system, the system is simple, easy to operate, and it integrates coupling, optical fiber rotation and welding

[0005] Another purpose of the present invention is to solve the technical problem that the coupling efficiency of the soldered product cannot be guaranteed due to low coupling efficiency by manually holding the optical fiber and rotating the optical fiber in the coupling package of the existing butterfly device, and to provide a A panda-type polarization-maintaining fiber and lens coupling welding method, which can realize the precise rotation of the polarization-maintaining fiber angle, and efficiently and stably complete the coupling package in the butterfly device

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