| This thesis is devoted to the experimental investigation of a flexible, spatially-dispersive laser system, which produces a multiwavelength, ultrabroadband, tunable laser radiation. The principle of operation of these lasers is based on an efficient suppression of the mode competition, natural for conventional laser sources, by means of the spatial separation of different frequency components in the laser gain medium. The present work is devoted to the investigation of a continuous-wave, spatially-dispersive laser, where the spatial dispersion of the frequency components is achieved with a dispersive system, based on an intracavity focusing lens and a Littrow-mounted diffraction grating. Several new spatally-dispersive laser systems of this type are demonstrated: (1) a semiconductor multiwavelength, spatially-dispersive laser, based on a single-chip laser diode, operating in the spectral region of 650--670 nm; (2) a semi-conductor multiwavelength, spatially-dispersive laser, based on a multi-stripe laser diode, operating in the spectral region of 1540--1580 nm; and (3) a solid-state, multiwavelength, ultrabroadband, tunable spatially-dispersive laser, based on the poly-crystalline Cr2+:ZnSe, operating in the spectral region of 2100--2850 nm. |
