Packaging equipment and method of polarization maintaining optical fiber butterfly-shaped laser

Abstract

The invention provides packaging equipment of a polarization maintaining optical fiber butterfly-shaped laser. The packaging equipment comprises an optical fiber clamp module, a pipe shell clamp module, a welding module and a visual monitoring module, wherein the optical fiber clamp module clamps an optical fiber and sends the optical fiber into the pipe shell, adjusts the position and angle of the optical fiber for coupling, the pipe shell clamp module clamps and positions the pipe shell and can electrify the pipe shell, the welding module welds a metal sleeve on the coupled optical fiber inthe pipe shell, and the visual monitoring module is used for monitoring the position and angle of the optical fiber; and the welding module comprises a tail pipe welding assembly arranged on one sideof the pipe shell clamp module, and at least two electrodes are arranged on the tail pipe welding assembly and can make contact with the two sides of the through hole of the pipe shell to be electrified. The modules are reasonable in structural design and compact in connection fit, the packaging process is simplified, the production efficiency is improved, meanwhile, the problem that a tail end metal sleeve is difficult to weld through a laser welding assembly is solved, and the beneficial effects that weldment deformation is small, and automatic control is easy to achieve are achieved.

Description

technical field [0001] The invention relates to the technical field of butterfly laser packaging, in particular to a packaging device and method for a polarization-maintaining fiber butterfly laser. 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-maintaini...

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Problems solved by technology

In the above solution, the front end of the fiber is fixed on the heat sink by a saddle clamp, and the operation is relatively cumbersome. At the same time, it is difficult to realize the welding between the end of the fiber and the through hole by relying on the laser welding device above. Therefore, there is still room for further optimization of the packaging method of the butterfly laser.

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