Beam waveform flexibility. According to the specific application, the fiber laser can choose single-mode or multi-mode output mode. For cutting very thin materials or applications requiring a small spot size, single mode will be a suitable choice. However, most high-power applications will use flat-top or multimode mode. The aerospace industry has proven that holes drilled…
Month: May 2020
These Laser Pointers Usually Run in Standby Mode
Most non-fiber lasers must use a large water-cooled machine for water cooling, which requires regular daily maintenance. The deionized filter element, particle filter and deionized water must be replaced regularly (usually every six months) to prevent water pollution. If the quality of the cooling water cannot be guaranteed and maintained, the laser pointer efficiency will be reduced,…
Single Fiber Green Laser Pointer Pulse Can be Controlled Using Analog
Significantly reduced power costs, coupled with no consumables, no spare parts and low maintenance requirements, and no warm-up time requirements, ultimately lead to considerable cost optimization. Fiber lasers provide pulse energies from several joules to tens of joules with pulse widths from microseconds to milliseconds. They also provide several times higher maximum average power (from…
Quasi-continuous Fiber Laser Usher in A Golden Development Period
For enterprises, there are many reasons for using quasi-continuous fiber lasers. For example, fiber lasers combine the advantages of a pulse laser drilling and welding and the cutting capacity of a CO2 laser. The combination of these processing capabilities cannot be achieved with traditional technology, so in the past many companies have both CO2 lasers…
US Apache Helicopter Tests High-energy Laser Weapons
The military has tested laser pointer weapons on communications, aircraft, and audited armored vehicles, but recently, Raytheon revealed that it had conducted similar high-energy laser weapon experiments on an Apache AH-64 attack helicopter. The company said that in April of this year, they worked with the US Army Apache Project Management Office and the US Army Special…
New Research on Femtosecond Time Scale Changes Laser Color
The second harmonic effect enables the conversion of incident red light into blue light. The terahertz laser pulse irradiation can significantly increase the frequency doubling effect of ceramics. How to change the color of laser pointer? A popular method is to use the so-called second harmonic (SHG) effect, which doubles the frequency of light, thereby changing…
The Brightest Laser in The World Triggers A New Act of Light
Physics at the University of Nebraska-Lincoln uses a new light source to look at everyday phenomena. The physicists created the brightest light on the planet. By focusing the laser to a brightness one billion times higher than the surface of the sun, we observed changes in the interaction between light and matter. These changes produce…
Method for Measuring Peak Intensity of Green Laser Pointer
How a change in the movement of an electron changes the scattering of light, in a new experiment, measured more than 500 photons scattered from a single electron. Previous laser pointer experiments only scattered a few photons at a time. Image courtesy of Aurora Labs | University of Nebraska Lincoln. The unique nature of this X-ray can…
Nonlinear Optical Crystal Can Change Laser Color from Femtosecond Time Scale
It is reported that scientists from the Tokyo Institute of Technology in Japan and the Kyoto University Institute of Material-Cell Integration Sciences used femtosecond visible light and terahertz pulses as external perturbations to study the second harmonic generation effect of light-excited bismuth oxide. This study highlights the importance of ion orbital excitation; this study is…
German Researchers Use Laser Pulses to Remove Weeds
The robot automatically recognizes weeds in the farmland and “fights” with short laser pointer pulses. For sustainable agriculture that avoids herbicides as much as possible, it may benefit from this clever idea. In fact, the PhD of the Institute of Geodesy and Geographic Information at the University of Bonn in Germany is doing this research. The German…