Dispersion cavities with volume holographic gratings

The analysis and experimental testing of dispersion cavities with volume holographic transmission gratings are performed. Depending on the angular selectivity and dispersion of the gratings, which determine the lasing linewidth, the required tuning range is accessible by rotating only one of the cavity mirrors or the grating – mirror unit about a given axis. The angular selectivity of the volume gratings is shown to play a decisive role in determining the lasing linewidth, making it possible to realise single-mode lasing in nanosecond lasers without using telescopic optics.