RADIATION SOURCE UNIT FOR SUPPLYING SHORT-WAVE OPTICAL RADIATION, AND METHOD OF ASSEMBLING SUCH A UNIT

摘要

The invention relates to a radiation source unit (1) for supplying short-wave optical radiation, and to a method of assembling such a unit. The radiation source unit (1) comprises a diode laser (11) and a waveguide (13) of a non-linear optical material for converting the diode laser radiation into radiation having a smaller wavelength. The diode laser (11) is provided in a bush (5) having a first end (7) and a second, open end (9). The second end (9) is adapted to accomodate a first holder (17) in which a lens system (15) is arranged for imaging the exit plane of the diode laser (11) on the entrance plane of the waveguide (13). At a side of the first holder (17) remote from the diode laser (11) a second holder (27) is secured in which the waveguide (13) is arranged. Said holders (17, 27) are aligned and fixed with respect to each other in such a way that the chief ray of the diode laser beam, the optical axis of the lens system (15) and the axis of the waveguide (13) are in alignment, and that the diode laser beam is focused on the entrance aperture of the waveguide (13).