Future trends in the development of solid-state lasers include ultrashort pulses and high peak power, which are helpful for welding circuit boards and cutting metal sheets.
FREMONT, CA: Utilizing diodes as excitation light sources helps minimize the price of ultrashort pulse lasers. The faster the processing speed, the greater the laser power. In the macro processing section, the more the laser source's ability, the greater the processing efficiency. In the micro-processing portion, the smaller the heat zone on the workpiece and the greater the machining precision, the shorter the pulse. After analyzing the worldwide laser industry's development pattern, it determines that the future development trend of laser processing will be toward higher power, shorter pulse, and lower cost.
High-power laser: The workpiece material, wavelength, power, and pulse time affect laser processing efficiency. Laser power significantly connects with processing efficiency in macro processing, such as welding, cutting, and cladding. The industry has focused on improving it. Doubling capacity can double efficiency, reduce the processing time by 50 percent, and only raise the cost by 30 percent, which is advantageous for the production line. Recently, laser cutting light output has increased from 1KW to 8KW, and some manufacturers have shown 10KW. High-power fiber laser sources for laser metal cutting have become a trend. High-power lasers developed the 120KW welding laser. Military and defense lasers can reach 200KW, and laser power will continue to increase.
Stay ahead of the industry with exclusive feature stories on the top companies, expert insights and the latest news delivered straight to your inbox. Subscribe today.
Fiber lasers: Combined with the waveguide features of optical fibers and the integrated qualities of semiconductors and they have excellent beam quality, efficiency, heat dissipation, compact structure, and flexible operation. It represents high-power, high-brightness laser development. Direct Diode Lasers (DDL) are another high-power trend. Due to technological breakthroughs, DDLs may generate output powers of 20 kilowatts in multimode systems at less cost than fiber lasers of the same power. Combining laser diodes into bar laser diodes and stacks of bar laser diodes increase their output power from milliwatts to several watts. Laser diode strips are 1 cm wide.
Ultra-Short Pulse Laser (ULP): An ultrashort pulse laser (USP) has a short pulse width, producing brief laser light. Super short pulse lasers are pulsed lasers with a temporal width between picoseconds (ps) and several femtoseconds (fs). Picosecond and femtosecond lasers are ultrashort pulse lasers. Science and engineering use ultrashort pulse lasers to monitor ultrafast dynamic processes. Ultra-short pulse laser processing reduces thermal effects, and industry players call it cold working. Ultrashort pulse lasers are ideal. Precision machining uses ultra-fast lasers.
More in News