A laser medium containing a chromium (3+) doped germanate garnet represented by the general formula: Ca.sub.3 M.sub.2(1-x) Cr.sub.2x (GeO.sub.4).sub.3 wherein M is Al.sup.3+, Ga.sup.3+, Sc.sup.3+, Lu.sup.3+, or Y.sup.3+ and 0<x.ltoreq.0.25 is disclosed. A laser employing the above-described laser...http://www.google.com.au/patents/US4648094?utm_source=gb-gplus-sharePatent US4648094 - Chromium (3+) doped germanate garnets as active media for tunable solid state lasers
