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Method and device for measuring vertical divergence angle of high-power laser diode array

A laser diode, vertical divergence angle technology, applied in the field of lasers, can solve problems such as the introduction of circulating water systems, and achieve the effect of improving accuracy and accurate measurement

Inactive Publication Date: 2014-03-26
BEIJING GK LASER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, when measuring high-power laser diode arrays, the biggest problem lies in the introduction of the circulating water system

Method used

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  • Method and device for measuring vertical divergence angle of high-power laser diode array
  • Method and device for measuring vertical divergence angle of high-power laser diode array

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Embodiment Construction

[0041] The device and method for measuring the vertical divergence angle of a high-power laser diode array according to the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0042] refer to Figure 1~4 As shown in , the device for measuring the vertical divergence angle of a high-power laser diode array according to the present invention includes a chassis 1, a rotating disk 2, a central axis 3, a first displacement regulator 4, an L-shaped bracket 5, a second displacement regulator 6, One-dimensional pitch regulator 7, laser diode array support tooling 8, water cooling system and spectral characteristic testing device 10.

[0043] Wherein, the chassis 1 is disc-shaped, and the angle coordinates are engraved on the chassis 1. In the specific design, the angle on the chassis 1 is between -90° and +90°.

[0044] The rotating disk 2 is movably arranged on the chassis 1, and there is a scale mark ...

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Abstract

The invention discloses a device and a method for measuring the vertical divergence angle of a high-power laser diode array. The method comprises the following steps: calibrating the device for measuring the vertical divergence angle of the high-power laser diode array; and measuring the spectrum intensity vertical to the light-emitting surface of the laser diode array, carrying out difference operation through different revolving angles of a revolving plate under the same spectrum intensity, and further acquiring the vertical divergence angle of the high-power laser diode array. The device and the method for measuring the vertical divergence angle of the high-power laser diode array provided by the invention have the advantages that the measuring device has a collimation system, the vertical divergence angle and the spectrum characteristic of the laser diode array can be measured accurately; and additionally, a water cooling system is introduced according to the invention, the operation of the laser diode at the normal temperature is ensured.

Description

technical field [0001] The invention relates to the field of lasers, in particular to a device and method for measuring the divergence angle of a laser diode array. Background technique [0002] Since the high-power laser diode array has the advantages of small size, high power, high efficiency, and good reliability, it has been widely used in industrial, medical, military and other fields. [0003] In high-power diode arrays, the measurement of the divergence angle is extremely important for the coupling of high-power laser diode light. However, since the light field distribution of a high-power laser diode array is very complex and asymmetric, and generally speaking, the output light waves of the light-emitting units on it are incoherent, 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 (transverse mode directi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M11/02G01J3/28
Inventor 樊仲维朱光
Owner BEIJING GK LASER TECH
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