A fixed structure for coupling fiber array and semiconductor laser array

Abstract

The invention relates to the field of laser technology and discloses a coupling optical fiber array fixing structure. The coupling optical fiber array fixing structure comprises a fixed substrate and a micro-column array, wherein micro-columns in the micro-column array are independently distributed on the fixed substrate in a staggered mode; a soldering tin body is arranged in each micro-column; each soldering tin body is provided with a micropore, and a coupling optical fiber needing to be fixed penetrates through each micropore. The invention further discloses an optical fiber coupling semiconductor laser unit array which comprises an LD array, a micro-lens set array and a coupling optical fiber array, wherein the coupling optical fiber array is fixed through the coupling optical fiber array fixing structure. The coupling optical fibers of the coupling optical fiber array are fixed through the micro-column array and soldering tin, units of the micro-column array are distributed in the staggered mode and fixed independently, and high temperature stability and mechanical stability are achieved. The coupling optical fiber array fixing structure can be used for coupling fixing of single-mode optical fibers or a single multi-mode optical fiber or multi-mode optical fibers and is simple, convenient to operate, high in precision and more suitable for miniaturization process debugging.

Description

technical field [0001] The invention relates to the technical field of lasers, in particular to a coupling fiber array fixing structure and a semiconductor laser array. Background technique [0002] In the fiber coupling of semiconductor laser arrays, almost all optical components need to be adjusted and fastened with high precision, especially the coupling and fixing of single-mode fiber groups. In the process of adjusting and fastening the optical fiber coupling, a high-precision adjusting and fastening device is essential. Under normal circumstances, the use of a high-precision multi-dimensional adjustment frame can make the spatial position of the optical fiber reach an almost ideal state. However, when the optical fiber is fastened, it often occurs due to stress problems, uneven contact surfaces, etc., resulting in optical components being in tight After fixing, there will always be position deviations, which will affect the coupling effect. Contents of the invention...

AI Technical Summary

Problems solved by technology

Under normal circumstances, the use of a high-precision multi-dimensional adjustment frame can make the spatial position of the optical fiber reach an almost ideal state. However, when the optical fiber is fastened, it often occurs due to stress problems, uneven contact surfaces, etc., resulting in optical components being in tight After fixing, there will always be position running points, which will affect the coupling effect

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