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Greater stability through green laser of laser equipment but the cost is too high


Greater stability through green laser of laser equipment but the cost is too high, green laser devices laser relative to the other common devices, green light of continuous and pulsed green lasers has been able to meet the requirements of most applications in laser welding. But in machinery and equipment, especially for laser devices, the device causes the device to some electronic components used in stability, so if it is important to solve the problem of stability of equipment used.
We are lasers through many trials found that general stability issues that caused Green laser device has the following aspects, such as mechanical resonant cavity structure is not stable, temperature change and thermal lens effect, pumping power fluctuations, laser crystals on the green light absorption, mode jumping, and other factors. To improve stability, we will start with those aspects, to minimize these factors, so as to ensure the stability of the equipment as a whole. Here we are letter laser introduced some method everyone can for familiar about, can with directly control LD drive current of photoelectric feedback method improve Green laser output power of stability: according to detection to of output Green laser power of changes signal, on pumping shipped LD of work current for feedback control, to control LD of output power, then achieved on green laser output power of control, improve its stability. Or there is a continuous or pulsed laser beam of green laser light filtering filtering is not absorbed by the laser crystal 808nm of LD pumping light through 1064nm after the base frequency of the output mirror, when through a spectroscope for optical sampling, there are a few of the 532nm laser is reflected to the light detector to detect light intensity changes. Detector output signals are input to be amplified and processed within the feedback controller; controller generates a control signal is sent to the laser driver, control of LD drive current, thus changing the LD pumping power, and bring about changes in the gain of the laser crystal, Green Laser Green laser output power fluctuation compensation so that green laser output power stable.
Laser equipment especially for some high precision of equipment,, stability is very key of, and in customer of angle for, equipment of consistency, and stability and using life of length is they most concern of some problem, so we are letter laser in green light laser equipment above for many of process test, to discussion equipment of stability to how guarantee, hope general customer also can has benefit, so select laser welding machine manufacturers must to select formal professional of laser company!
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