Device for measuring vertical divergence angle of high-power laser diode array

Abstract

The invention discloses a device for measuring the vertical divergence angle of a high-power laser diode array. The device comprises a base plate, a rotary plate, a central shaft, a first displacement regulator, an L-shaped support, a second displacement regulator, a unidirectional pitching regulator, a laser diode array support tool and a water cooling system, wherein angle coordinates are engraved on the base plate; the rotary plate is arranged on the base plate in a rotatable mode and is provided with calibration tails; the central shaft is arranged on the center of the base plate and penetrates through the rotary plate; the first displacement regulator is installed on the rotary plate and is positioned beside the central shaft; the L-shaped support is fixed on the first displacement regulator; the second displacement regulator is installed on the L-shaped support; the unidirectional pitching regulator is installed on the second displacement regulator and can pitch along the vertical direction; the laser diode array support tool is installed on the unidirectional pitching regulator; and the water cooling system is connected with the laser diode array support tool. The device for measuring the vertical divergence angle of the high-power laser diode array provided by the invention has the advantages that the operation of the high-power laser diode array at normal temperature is ensured, the center collineation of a light-emitting line and the central shaft is also ensured, and the measuring accuracy is improved as well as the aim that the laser diode array with different heat sink widths can be measured is realized.

Description

technical field [0001] The invention relates to a measuring device, especially a device for measuring the vertical divergence angle of a high-power laser diode array. Background technique [0002] At present, high-power laser diode arrays have been widely used in the production of industrial lasers, and based on the advantages of laser diode arrays such as small size, high power, high efficiency, and good reliability, high-power laser diodes are also used in industry, medical, military, etc. and other fields, the scope of application is extremely wide. [0003] However, since the light field distribution of a high-power laser diode array is very complex and asymmetric, generally speaking, the output light waves of the light-emitting units on it are incoherent, and the light intensity in the far-field region can be a simple superposition of the light intensity of a single light-emitting unit. For a typical high-power laser diode array, the divergence angle of the vertical (t...

AI Technical Summary

Problems solved by technology

[0010] In view of the shortcomings of the existing measurement method that the rotating shaft and the luminescent line cannot be kept concentric and the circulating water system cannot be introduced during the measurement, it is easy to cause problems such as low measurement accuracy and low output power of the laser diode. The main purpose of the present invention is to provide a A device with a water-cooling system, capable of calibrating the concentric axis, and used for measuring the vertical divergence angle of a high-power laser diode array

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