Butterfly laser coupling and welding equipment with polarization-maintaining fiber

Abstract

The invention provides butterfly laser coupling and welding equipment with a polarization-maintaining fiber. The butterfly laser coupling and welding equipment comprises an optical fiber clamp module,a pipe shell clamp module, a welding module and a visual monitoring module; the optical fiber clamp module clamps an optical fiber to feed the optical fiber in a pipe shell and adjusts the position and angle of the optical fiber for coupling; the pipe shell clamp module clamps and positions the pipe shell and electrifies the pipe shell; the welding module welds a metal sleeve on a coupled opticalfiber in the pipe shell; the visual monitoring module is used for monitoring the position and angle of the optical fiber; the optical fiber clamp module comprises a mounting plate arranged on a coupling displacement table, an optical fiber rotary support table arranged at one end of the mounting plate, and a front end chuck component arranged at the other end of the mounting plate. According to the butterfly laser coupling and welding equipment, all modules are reasonable in structural design and compact in joining and matching, so that the packaging process is simplified, and the productionefficiency is improved; and when a front end chuck moves, and adsorbs and fixes the metal sleeve at the front end of the optical fiber, the front end chuck does not generate obvious mutual interference with the optical fiber rotary support table, so that the coupling precision is improved.

Description

technical field [0001] The invention relates to the technical field of butterfly laser packaging, in particular to a butterfly laser coupling and welding device with a polarization-maintaining optical fiber. Background technique [0002] The light emitted by semiconductor lasers for communication is linearly polarized light. When it is transmitted in a common single-mode fiber, if the fiber is bent or twisted, the polarization state of the optical signal will change. The polarization state of the optical signal is an important optical characteristic. In many applications, there are clear requirements for the polarization state of the optical signal, and a polarization-dependent light source is required. Therefore, it is necessary to directly couple the light emitted by the laser chip into the polarization-maintaining fiber for further processing. use. [0003] Polarization-maintaining fiber is a kind of fiber that transmits linearly polarized light. The use of polarization-...

AI Technical Summary

Problems solved by technology

In the above scheme, the optical fiber rotating support table and the front chuck seat of the optical fiber clamp module are set at the same position, so that after the optical power and angle are coupled, the adsorption action of the front chuck seat will cause disturbance to the optical fiber rotating support table, and the fiber angle A certain change occurs, resulting in a decrease in coupling accuracy

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