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Broad-band, large-range laser power meter verification device

A technology of laser power meter and verification device, which is applied in measurement device, photometry, optical radiation measurement and other directions to achieve the effect of expanding power range and improving spectral range

Active Publication Date: 2019-03-26
PLA 92493 TROOP METERING TEST CENT +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The laser light source of the device is verified by the laser power meter to be inspected through the variable aperture, laser beam splitter and laser attenuator, and solves the technical problem of laser power detection

Method used

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  • Broad-band, large-range laser power meter verification device

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Embodiment Construction

[0024] Further illustrate the present invention below in conjunction with accompanying drawing.

[0025] As shown in the figure, the laser radiation source 0 includes a 633nm laser 1, a 532nm laser 2 and a 1064nm laser 3, a first flip mirror 1.1 is installed on the optical path of the 633nm laser, and a second flip mirror 2.1 is installed on the optical path of the 532nm laser. A third flip mirror 3.1 is installed on the optical path of the 1064nm laser, and the laser light reflected by the flip mirror converges on the horizontal optical path. The first variable diaphragm 4 and the laser beam splitter 5 are installed on the initial position of the horizontal optical path. The laser light reflected by the beam plate is irradiated on the monitoring detector 6, and the laser light not reflected by the laser beam splitter passes through the laser attenuator group 7, and an adjustable duty ratio laser attenuator 7.1 is installed on the front side of the laser attenuator group, and t...

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Abstract

The invention provides a broad-band and large-range laser power meter verification device. A laser radiation source comprises a 633 nm laser device, a 532 nm laser device and a 1064 nm laser device, a first turnover reflecting mirror is arranged on an optical path of the 633 nm laser device, a second turnover reflecting mirror is arranged on an optical path of the 532 nm laser device, a third turnover reflecting mirror is arranged on an optical path of the 1064 nm laser device, lasers reflected by the turnover reflecting mirrors are assembled on a horizontal optical path, a first variable diaphragm and a laser beam splitter are mounted at an initial position of the horizontal optical path, the lasers reflected by the laser beam splitter shoot to a monitoring detector, after the lasers go through a laser attenuator group and then go through a laser power stabilizer, the lasers further pass through a second variable diaphragm until the lasers shoot on the a broad-band standard laser power meter and are sent to a broad-band standard laser power meter to be verified. According to the broad-band and large-range laser power meter verification device, the measurement and verification of broad-band and large-range laser power meters can be achieved, the device is suitable for being used as a verification device of laser power.

Description

technical field [0001] The invention belongs to the technical field of optical measurement and testing, and relates to a wide-band, large-range laser power meter verification device. Background technique [0002] As a cutting-edge high-tech, laser technology has important applications in military and national defense, and has important advantages in the fields of precise ranging, precise guidance, and secure communication. The most basic parameter of laser radiation is radiation power. Laser power measurement technology is the key to guarantee various laser applications. These applications of laser technology are inseparable from the precise measurement of laser power. Therefore, laser power measurement is highly valued by domestic and foreign metrology departments. The German Institute of Physics and Technology (PTB), the National Institute of Standards and Technology (NIST), the British National Physical Laboratory (NPL), the Chinese Institute of Metrology (NIM) and other ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J1/42
CPCG01J1/4257
Inventor 付永杰才滢闫道广邓玉强方波
Owner PLA 92493 TROOP METERING TEST CENT
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