Power detection device of laser device

A technology of power detection and laser power, applied in the direction of using electric radiation detectors for photometry, etc., can solve the problems of deviation of detection data, high production cost, inaccurate detection results, etc., to reduce energy loss, improve detection accuracy, reduce energy effect

CN107271035AActive Publication Date: 2017-10-20WENZHOU FIBER LASER
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2017-10-20

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Abstract

The invention discloses a power detection device of a laser device. The power detection device comprises a power detection component which is composed of a light reflecting plate and a laser power detector. The light reflecting plate reflects the laser emitted by the laser device to the laser power detector to perform power detection. The light reflecting plate periodically reflects the laser beams of the laser device so that the laser power detector is enabled to periodically receive the laser reflected by the light reflecting plate. The power detection device of the laser device has low production cost, high detection value stability and high accuracy.
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Description

technical field

[0001] The invention relates to the field of laser detection equipment, in particular to a laser power detection device. Background technique

[0002] The rated power of the semiconductor laser is an important indicator of the laser process parameters. Only the appropriate laser power can ensure the stable operation of the laser and the optical system for a long time, and it is also the decisive factor for achieving the best processing quality. In the existing laser detection methods, generally By selecting a lighting sheet, a small part of the laser light is reflected to the laser detector, and the linear relationship in the laser detection is prevented from interfering with strong light through the amplification effect. In the existing technology, it is generally selected to filter other stray light and pass through The light-transmitting plate with 1% laser reflects the intercepted less than 1% of the laser light into the laser detector to avoid the interf...

Examples

Embodiment Construction

[0031] The present invention will be described in further detail below in conjunction with the embodiments given in the accompanying drawings.

[0032] refer to Figure 1-6 As shown, a laser power detection device disclosed in this embodiment includes a power detection assembly 1, the power detection assembly 1 includes a reflector 2 and a laser power detector 3, and the reflector 2 reflects the laser light emitted by the laser The power is detected on the laser power detector 3 , and the reflector 2 periodically reflects the laser beam of the laser, so that the laser power detector 3 periodically receives the laser light reflected by the reflector 2 .

[0033]The reflective plate 2 has better stability relative to the light-transmitting plate. The reflective plate 2 is arranged in front of the laser emitting light path. The angles between them are equal, so that the beam path can be accurately projected onto the receiving surface of the laser detection component through the ...