Solid-state lasers for color holography

Abstract

The problems in recording, copying and reconstruction of color transmission and reflection holograms are discussed with respect to the following source laser parameters: (a) a set of RGB (red, green, blue) wavelengths, (b) spectral bandwidth (temporal coherence), (c) spatial coherence, and (d) output power. The analysis of different optical schemes for color holography with referring to the parameters mentioned above suggests the necessity of having various lasers with different spatial, temporal and power characteristics. Based on the analysis, solid-state lasers with intracavity as well as extracavity frequency conversion examined as an efficient source of RGB (red, green, blue)--wavelengths under various operating regimes: CW, quasi-CW (with high repetition rate--up to 1,000 kHz), pulse, Q-switch, mode-locking etc. The possible optical schemes of such lasers are proposed and their parameters are discussed.