The PROLITE-90 laser light source emits light of a wavelength of 1310 nm and/or 1550 nm. It allows to select easily by means of direct access keys the desired wavelength, to generate a modulated signal or to activate the automatic operation mode. These light sources may be modulated with 270 Hz, in the case of the wavelength of 1310 nm and 2 kHz for the 1550 nm one, facilitating identify a particular optical fibre when working with systems that contain a large number of fibres.
