Multispectral laser power testing device and method
A laser power and spectrum testing technology, which is applied in spectrometry/spectrophotometry/monochromator, measuring device, photometry, etc., can solve the problems of inability to test the accurate power of multispectral lasers, and achieve fast power The effect of the test
Active Publication Date: 2020-09-18
AEROSPACE INFORMATION RES INST CAS
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Problems solved by technology
[0006] The purpose of the present invention is to provide a multi-spectral laser power testing device and method, which can overcome the problem that the photodetector cannot perform accurate power testing on multi-spectral laser due to the change of responsivity with wavelength, and realize the Multispectral laser power quick test
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[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0021] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings, as figure 1 Shown is a schematic structural diagram of a test device for multispectral laser power provided by an embodiment of the present invention, the device mainly includes an integrating sphere 1, a spectrum test module 2 and a laser power test module 3, and the spectrum test module 2 and the laser power test mod...
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The invention discloses a multispectral laser power testing device and method. The device comprises an integrating sphere, a spectrum testing module and a laser power testing module, wherein the spectrum testing module and the laser power testing module are installed on the integrating sphere, a light inlet hole is formed in one side of the integrating sphere, multispectral laser to be tested enters the integrating sphere through the light inlet hole, and uniform light distribution is formed in the whole integrating sphere; the spectrum testing module is used for testing the spectral characteristics of the laser entering the integrating sphere; and the laser power test module is used for testing laser power, converting an optical signal into an electric signal by the laser power testing module through an opening in the integrating sphere and outputting the electric signal, and realizing the test of multispectral laser power. According to the method and the device, the problem that accurate power testing cannot be performed on the multispectral laser due to the fact that the responsivity of the photoelectric detector changes along with the wavelength can be solved, and rapid testingof the multispectral laser power is realized.
Description
technical field [0001] The invention relates to the technical field of laser power testing, in particular to a multispectral laser power testing device and method. Background technique [0002] Laser has the advantages of high brightness, high coherence and high directivity that cannot be compared with ordinary light sources. It can obtain very high laser power density through the convergence of optical systems and realize local melting of metals and other materials. It has been widely used in laser In the field of laser processing such as cutting and laser coating, when using laser for device processing, the greater the laser power, the stronger the laser processing capability, so the laser processing machinery needs to increase the laser power as much as possible, which is limited by the development level of laser technology. It is difficult to achieve a very high power laser, and if the laser synthesis of multiple wavelengths is used, the laser power can be greatly increa...
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Login to View More IPC IPC(8): G01J1/42G01J1/04G01J3/02G01J3/28G01J3/30
CPCG01J1/0488G01J1/4257G01J1/42G01J3/0254G01J3/2803G01J3/30
Inventor 王涛张玉莹麻云凤满在刚王哲高和平王帅娄玮樊仲维
Owner AEROSPACE INFORMATION RES INST CAS