Laser source, for use particularly for industrial processes, comprising: - a laser beam generating unit, including one or more diode laser sources, for generating a first laser beam, - an optical amplification unit adapted to be pumped with laser light derived from said first laser beam emitted by said generating unit and to emit a second laser beam at its output which is characterized by a higher beam quality and a lower power value with respect to said first laser beam at the output from said generating unit, and - a laser beam switching and addressing optical unit, interposed between said generating unit and said optical amplification unit, said laser beam switching and addressing optical unit including: - an inlet for receiving said first laser beam coming from said generating unit, - a first optical line for forwarding said first laser beam towards a first outlet of said laser source, - a second optical line for forwarding said first laser beam towards said at least one amplificator module of said optical amplification unit, and - an optical path selector device interposed between said inlet and said first and second optical lines (44, 45) for directing said first laser beam coming from said generating unit selectively towards: - said first optical line, so as to generate the emission of a laser beam having a relatively higher power and a relatively lower quality at said first outlet of said laser source, or towards: - said second optical line so as to generate the emission of a laser beam having a relatively lower power and a relatively higher quality at a second outlet of said laser source, and wherein said optical amplification unit includes a plurality of amplificator modules arranged in parallel, having respective inlets supplied in parallel by said second optical line and respective outlets connected to optical lines all converging towards said second outlet. - a laser beam generating unit, including one or more diode laser sources, for generating a first laser beam, - an optical amplification unit adapted to be pumped with laser light derived from said first laser beam emitted by said generating unit and to emit a second laser beam at its output which is characterized by a higher beam quality and a lower power value with respect to said first laser beam at the output from said generating unit, and - a laser beam switching and addressing optical unit, interposed between said generating unit and said optical amplification unit, said laser beam switching and addressing optical unit including: - an inlet for receiving said first laser beam coming from said generating unit, - a first optical line for forwarding said first laser beam towards a first outlet of said laser source, - a second optical line for forwarding said first laser beam towards said at least one amplificator module of said optical amplification unit, and - an optical path selector device interposed between said inlet and said first and second optical lines (44, 45) for directing said first laser beam coming from said generating unit selectively towards: - said first optical line, so as to generate the emission of a laser beam having a relatively higher power and a relatively lower quality at said first outlet of said laser source, or towards: - said second optical line so as to generate the emission of a laser beam having a relatively lower power and a relatively higher quality at a second outlet of said laser source, and - an inlet for receiving said first laser beam coming from said generating unit, - a first optical line for forwarding said first laser beam towards a first outlet of said laser source, - a second optical line for forwarding said first laser beam towards said at least one amplificator module of said optical amplification unit, and - an optical path selector device interposed between said inlet and said first and second optical lines (44, 45) for directing said first laser beam coming from said generating unit selectively towards: - said first optical line, so as to generate the emission of a laser beam having a relatively higher power and a relatively lower quality at said first outlet of said laser source, or towards: - said second optical line so as to generate the emission of a laser beam having a relatively lower power and a relatively higher quality at a second outlet of said laser source, and - said first optical line, so as to generate the emission of a laser beam having a relatively higher power and a relatively lower quality at said first outlet of said laser source, - said second optical line so as to generate the emission of a laser beam having a relatively lower power and a relatively higher quality at a second outlet of said laser source, and