Multiple-prism beam expanders are unique beam magnification means which expand a light beam without focusing it and... with the added option of achromaticity. Our experience with these wondrous prismatic arrays began in 1980 (F. J. Duarte and J. A. Piper, A double-prism beam expander for pulsed dye lasers, Opt. Commun. 35, 100-104 (1980)) and has continued to expand ever since. Applications are found in:
Intracavity beam expansion
Extracavity beam expansion
Multiple-prism beam expanders designed either in additive or compensating dispersive configuration. Beam expansion factors greater than 200 (M > 200) are feasible depending on the input aperture. Input parameters include: laser wavelength, input aperture, beam expansion factor, transmission efficiency, required physical length of the multiple-prism array. Option 1: design only. Option 2: design plus US made multiple-prism array. Representative multiple-prism beam expander specifications are available in PDF form. Specialized designs for the ultraviolet and the infrared regions of the spectrum are also available on request.
Figure 1. Multiple-prism arrays in compensating configurations