The advantage of MOPA fiber laser is that its pulse width and frequency are independently adjustable. Adjust one of the parameters will not affect the other, which is different from Q-switched laser.Q-switching is a technique by which a laser can be made to produce a pulsed output beam, leading to lower pulse repetition rates, higher pulse energies, and longer pulse duration.LoSpeed MOPA marking machine has a diverse application range, with wider pulse width range and much more flexible than the Q- switched laser machine. It can mark on stainless steels vividly.