Fiber laser markers, be it pulsed or continuous wave, have prevailed in nearly all industries for marking products permanently and in high quality. The fiber lasers that are used for industrial part marking usually are either Q-switch or MOPA lasers. As of today, Q-switch lasers are more common because they have already existed on the market for a longer time. That is why they are sometimes called “standard laser”. But due to their high flexibility, MOPA lasers like the FOBA Y.0201 and Y.0201-DN, are an interesting alternative for many applications.