Fiber laser marking mac£✘☆εhine can also be cal↔§×led metal laser marking ma•<chine. Because it uses a fiber las™≠er, which uses rare-earth element-do☆©±ped glass fiber as the gai&•✘ n medium, it is easy to form a ≠→→high power density in the fiber γ☆♥↑under the action of the pu≤± ∏mp light, resulting in the laser δ§‍€energy level of the laser worki$Ωng material. ”, when a positive feedba δ✔ck loop (constituting a resonator)∑"Ω is properly added, the laser±Ω₩ oscillation output can  ™®be formed. The laser wavelength®®¥≈ is 1064nm, which belo$>ngs to infrared invisible light, and t$γ♠he absorption rate of m δ∏€etal materials for this wavelength is r¥®©elatively high, so the fδ"σ£iber laser marking machine is mainly u‍♠sed for metal marking.