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Fast-axis lens comprehensive performance testing device and method
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A comprehensive performance test and lens technology, which is applied in measuring devices, optical instrument tests, and optical performance tests, can solve the problems of inconvenient performance testing of fast-axis lenses, affecting the efficiency of testing, and easy damage to fast-axis lenses.
Pending Publication Date: 2021-09-14
SHANGHAI NEXTREND TECH
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[0007] The present invention can solve the problem that the existing fast-axis lens performance is inconvenient, it is
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[0058] Laser 250, the laser 250 is used to provide a laser beam as a test light source;
[0059] The measured fast axis lens 330;
[0060] Slow axis lens 410;
[0061] Attenuation spectroscopic diaphragm 420;
[0062] Spot test component 400;
[0063] power test assembly 600;
[0064] temperature testing assembly 500;
[0065] The measured fast-axis lens 330, the slow-axis lens 410 and the attenuation spectroscopic diaphragm 420 are sequentially arranged along the laser beam direction of the laser 250;
[0066] The laser beam of the laser 250 passes through the measured fast axis lens 330, forms a collimated spot through the slow axis lens 410, and then passes through the attenuation spectroscopic diaphragm 420 and divides it into transmitted light and reflected light, and one beam of transmitted light and reflected light enters The light spot test component 400, another beam of ...
Embodiment 2
[0084] see Figure 2-Figure 6 , a fast-axis lens comprehensive performance testing device, including a test platform 100 , a support component 200 , a clamping mechanism 300 , a spot test component 400 , a temperature test component 500 and a power test component 600 .
[0085] The support assembly 200 includes a power supply 210, a support base 220, a refrigerator 230 and a heat sink 240. The power supply 210 is installed on the top of the test platform 100, the support base 220 is installed on the top of the test platform 100 adjacent to the power supply 210, and the refrigerator 230 is installed on the support base. 220, the power supply 210 is electrically connected to the refrigerator 230, the heat sink 240 is installed on the top of the refrigerator 230, and the laser 250 is installed on the top of the heat sink 240. In the specific setting, in order to facilitate power supply, the terminal of the power supply 210 and the laser 250 Electrically connected, in order to adj...
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PUM
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Abstract
The invention discloses a fast-axis lens comprehensive performance testing device and method. The device comprises a laser device, a tested fast-axis lens, a slow-axis lens, an attenuation light-splitting diaphragm, a light spot testing assembly, a power testing assembly, and a temperature testing assembly, wherein the tested fast-axis lens, the slow-axis lens and the attenuation light-splitting diaphragm are sequentially arranged along the laser beam direction of the laser device, the laser beam of the laser device passes through the tested fast-axis lens and then forms a collimation light spot through the slow-axis lens, the collimation light spot is divided into transmission light and reflection light through the attenuation light-splitting diaphragm, one of the transmission light and the reflection light enters the light spot testing assembly, the other light beam enters the power testing assembly, and the temperature testing assembly is arranged on the side of the tested fast-axis lens. According to the invention, at least one performance of output light spot distribution, output light energy or working temperature of the tested fast-axis lens is tested through the light spot testing assembly, the power testing assembly or the temperature testing assembly, and comprehensive test can be realized.
Description
technical field [0001] The invention relates to the technical field of semiconductor lasers, in particular to a fast-axis lens comprehensive performance testing device and testing method. Background technique [0002] The divergence angle of the semiconductor laser output beam in two mutually perpendicular planes is very different, and the spot of the beam cross section is an ellipse spot. The output beam needs to be shaped separately in two planes, usually with two cylindrical lenses, one in front and one in the back. The fast-axis collimator lens is next to the laser chip, followed by the slow-axis collimator lens. The convex cylindrical surface of the fast-axis collimating lens is aspherical, which is difficult and expensive to process, and its performance directly determines the coupling performance of the laser output beam to the optical fiber. [0003] Whether the fast-axis lens can meet the needs of customers usually has three important performance indicators to be t...
Claims
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