TRTF performance test system of TOF laser and working method of TRTF performance test system
A test system and working method technology, applied in the field of TRTF performance test system, to achieve reliable results and high test accuracy
Active Publication Date: 2021-10-15
柯泰光芯(常州)测试技术有限公司
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Problems solved by technology
TRTF performance is the main performance for evaluating the narrowest pulse width sent by TOF lasers. It is one of the important performances of semiconductor lasers. TRTF time plays a vital role in the ranging capability of TOF lasers. Therefore, the need to test the TRTF performance of TOF lasers It is very important, but there is no testing system and method with high testing accuracy, high efficiency and easy operation.
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[0037] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.
[0038] See Figure 1 to Figure 4 , a TRTF performance test system for TOF lasers, comprising a high-voltage stabilized power supply 4, a signal generator 1, a high-speed laser driver board 2, a high-speed PD 3, an oscilloscope 5 and a computer 6. The signal generator 1 and the high-speed laser driver board 2 are connected through the signal generator output line (SMA line, 50Ω), and the high-speed laser driver board 2 and the high-voltage regulated power supply 4 are connected through a high-voltage power supply line (twisted pair, 220V High-speed PD 3 and the oscilloscope 5 are connected through the PD acquisition signal output line (SMA line, 5...
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Abstract
The invention provides a TRTF performance testing system of a TOF laser and a working method thereof and relates to the technical field of laser performance testing. The testing system comprises a high-voltage stabilized power supply, a signal generator, a high-speed laser driving board, a high-speed PD, an oscilloscope and a computer, wherein the high-speed laser driving board is connected with the TOF laser, and a signal acceleration circuit, a power amplification circuit and a GaN power tube are arranged in the high-speed laser driving board; the high-voltage stabilized power supply is used for providing driving voltage for the high-speed laser driving board, and the signal generator is used for sending a pulse with a wide pulse width to the high-speed laser driving board; the high-speed PD is used for collecting optical signals of the TOF laser and transmitting the optical signals to the oscilloscope; and the oscilloscope transmits the data to a computer so as to analyze the TRTF performance of the TOF laser. According to the TRTF performance test system of the TOF laser and the working method of the TRTF performance test system, the TRTF performance of the TOF laser can be rapidly tested, test precision is high, and the result is reliable.
Description
technical field [0001] The invention relates to the technical field of laser performance testing, in particular to a TRTF performance testing system and working method of a TOF laser. Background technique [0002] At present, the ranging capability of TOF (light time-of-flight) lasers determines its application in longer-distance test scenarios in the future. TOF lasers will be widely used in autonomous driving or assisted driving in the future, and it is necessary to achieve distance detection and 3D imaging of more than 100 meters. In order to achieve this goal, the laser needs to reach an instantaneous current of more than 100A. [0003] What the high current brings is that the power of the TOF laser is greatly increased, which may cause overheating and damage; in addition, the light intensity brought by the high current will also cause damage to the human eye. Constrained by the safety of human eyes and the heat of TOF lasers, in order to allow TOF lasers to achieve lo...
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IPC IPC(8): G01S7/497G01R31/00
CPCG01S7/497G01R31/00
Inventor 葛斌
Owner 柯泰光芯(常州)测试技术有限公司