Laser power meter capable of realizing shift adjustment by utilizing light filtering

A laser power meter and shifting technology, which is applied in photometry, photometry, optical radiation measurement, etc., using electric radiation detectors, can solve the problem of narrow measurement power range of photoelectric power meters, and broaden the measurable power The effect of scope, breakthrough in economic benefits, and high test efficiency

Inactive Publication Date: 2018-08-10
Shandong Huaguang Optoelectronics Co. Ltd.
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Problems solved by technology

[0007] Aiming at the problem that the measurement power range of the photoelectric power meter is relatively narrow in the prior art, the present invention provides a laser power meter that widens the power measurement range and uses light filtering to realize adjustable gears, and widens the power by performing controllable attenuation on the optical power. The measurement range makes it not only have the advantages of fast response time and high measurement accuracy of photoelectric power meters, but also have the advantages of wide measurement range of pyroelectric power meters

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  • Laser power meter capable of realizing shift adjustment by utilizing light filtering
  • Laser power meter capable of realizing shift adjustment by utilizing light filtering
  • Laser power meter capable of realizing shift adjustment by utilizing light filtering

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Embodiment Construction

[0022] Such as figure 1 As shown, the laser power meter of the present invention that uses light filtering to realize adjustable gears includes a driving power supply 1, a laser 2, an adjustable gear filter 3 and a sensor 4, and the laser 2 is connected to the driving power supply 1, and the gear can be adjusted The bit filter 3 includes n-stage optical filters, the first-stage optical filter is arranged on the light-emitting direction of the laser 2, the latter-stage optical filter is arranged on the attenuated transmitted light direction of the previous-stage optical filter, and the sensor 4 It is arranged in the direction of the attenuated transmitted light of the last stage filter, and the transmittance of each stage filter is realized by optical coating. The filters at all levels are at an angle of 45°, or at any angle between the incident angle and the total reflection angle.

[0023] The transmittance of each level of filter can be the same or different. The product of...

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Abstract

The invention provides a laser power meter capable of realizing shift adjustment by utilizing light filtering. The laser power meter comprises a driving power supply, a laser, adjustable shift opticalfilters and a sensor. The laser is connected with the driving power supply; the adjustable shift optical filters comprise at least one stage of optical filter, wherein the first stage of optical filter is arranged in the light output direction of the laser, and the later stage of optical filter is arranged in the light output direction of the previous stage of optical filter; the sensor is arranged in the light output direction of the last stage of optical filter; and transmissivity of each stage of optical filter is realized by means of optical filming. According to the laser power meter, bycarrying out optical power detection after receiving reflection attenuation of the laser through the same photoelectric sensor, measurable power range of a conventional power meter is expanded; and by selecting the shift adjustable optical filters having different multiplying power, large jump of test can be realized, corresponding measurement time is short, and test efficiency is high.

Description

technical field [0001] The invention relates to a laser power meter (Laser Power Meter, used to test the power of a continuous laser or the average power of a pulsed laser in a certain period of time) with adjustable gears, belonging to the technical field of laser detection. Background technique [0002] With the development of laser technology, lasers are widely used in communication medical, industrial manufacturing, civilian military products and other fields, and the energy detection of lasers is an important technical part in the field of laser detection technology. The energy detection of lasers corresponds to the continuous output of lasers The peak power, pulse energy, and pulse peak power. The existing laser energy meter, the common optical sensor is divided into thermal effect, photoelectric effect, photoconductive effect, etc., and the pyroelectric effect optical power meter is widely praised at present. An optical power meter is an instrument used to measure th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J1/42G01J1/04
CPCG01J1/4257G01J1/0448
Inventor 张骋梁盼刘存志汤庆敏徐现刚
Owner Shandong Huaguang Optoelectronics Co. Ltd.
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