Optical fiber fixing device coupled with high-power semiconductor laser

Abstract

The invention relates to an optical fiber fixing device coupled with a high-power semiconductor laser. All substrates, fast axis collimating lenses FAC, slow axis collimating lenses SAC and reflectors are fixedly arranged on different steps of a base respectively, each laser diode is fixedly arranged on one substrate, multiple laser diodes generate multiple light beams in different altitudes, the multiple light beams in different altitudes are subjected to respective fast axis collimating lenses FAC and slow axis collimating lenses SAC to generate parallel light beams in different altitudes; the parallel light beams are subjected to respective reflectors to reach the collimating lenses, and the multiple parallel light beams in different altitudes focus on an optical fiber by passing the collimating lenses; a boss is designed at the optical fiber fixing position of the base, the boss is integrated with the base, a V-shaped slot is designed on the upper surface of the boss and along the direction of the parallel light beams focusing on the collimating lenses, and the optical fiber is arranged in the V-shaped slot and is filled with glass solder and fixed. With the adoption of the optical fiber fixing mode, light in the cladding is separated, and the optical fiber is protected against being burned. Heat in the glass solder is dissipated out through the base.

Description

technical field [0001] The invention relates to an optical fiber fixing device coupled with a high-power semiconductor laser fiber. The device has the characteristics of good heat dissipation effect and high reliability of the optical fiber, and belongs to the technical field of semiconductor lasers. Background technique [0002] Due to the advantages of small size, light weight and high efficiency, semiconductor lasers are widely used in many fields such as industry, military, medical treatment and communication. Due to the limitations of its own quantum well waveguide structure, the output beam quality of semiconductor lasers and CO 2 Traditional lasers such as lasers and solid-state YAG lasers are relatively poor, which hinders the expansion of their application fields. In recent years, with the development of semiconductor material epitaxial growth technology, semiconductor laser waveguide structure optimization technology, cavity surface passivation technology, high st...

AI Technical Summary

Problems solved by technology

[0004] The light combined by the multi-tube semiconductor lasers is finally coupled into the optical fiber. At present, most multi-tube semiconductor laser devices use glue to fix the collimator lens and the optical fiber in a rigid metal sleeve, and then weld the metal sleeve to the base of the base. This method is simple and easy to implement. However, after high-power light enters the fiber, a small part of the light enters the ...

Images