UV glue curing method and fast axis collimating lens fixing method

Abstract

The invention provides a UV glue curing method and a fast axis collimating lens fixing method. The UV glue curing method comprises the steps that UV glue is irradiated under ultraviolet light corresponding to first preset power, so that the surface of the UV glue is partially cured, and a glue-linked structure is generated; the UV glue is irradiated under ultraviolet light corresponding to secondpreset power, and the fluidity of the UV glue is reduced until the surface of the UV glue is grey white; the second preset power is larger than the first preset power; the UV glue is irradiated underultraviolet light corresponding to rated power, so that the interior of the UV glue is cured, and the color of the surface of the UV glue is deepened; and the rated power is larger than the second preset power. According to the UV glue curing method, the UV glue is irradiated through the ultraviolet light with different kinds of power, the outer surface of the UV glue is cured step by step, then the UV glue is irradiated through the ultraviolet light with the large power, so that the interior of the UV glue is cured, the shrinkage in the later curing of the glue has a smaller impact on the shrinkage of the overall glue than before, and thus the shrinkage ratio of the glue is reduced on the whole.

Description

technical field [0001] The invention relates to the packaging field of high-power semiconductor fiber-coupled lasers (pumping sources), in particular to a method for curing UV glue and a method for fixing a fast-axis collimator lens. Background technique [0002] Semiconductor lasers have the advantages of small size and long life, which make them widely used in many fields. If you want to provide greater help to the development of semiconductor lasers, you must be good enough in the packaging of laser chips. [0003] At present, in one of the fast-axis alignment processes in the packaging process, the reliability of the optical lens is not fixed enough. The shrinkage of the glue after curing will cause the mechanical position of the optical lens to change, so that the lens is not at the original focus position, resulting in a decrease in the coupling output light efficiency, which seriously affects the good quality of this process. Rate. In the normal follow-up production...

AI Technical Summary

Problems solved by technology

[0003] At present, in one of the fast-axis alignment processes in the packaging process, the reliability of the optical lens is not fixed enough. The shrinkage of the glue after curing will cause the mechanical position of the optical lens to change, so that the lens is not at the original focus position, resulting in a decrease in the coupling output light efficiency, which seriously affects the good quality of this process. Rate

In the normal follow-up production process, about 0.2% of the lens will fall off, which will reduce the yield and production efficiency of semiconductor lasers

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