A laser pumped tunable laser system is disclosed directed to achieving
tunable outputs with high wall plug efficiencies. In particular, green
laser pumped alexandrite lasers are discussed--both pulsed and CW--where
the wall plug efficiencies of greater than 2% can be achieved using
practical, commercially available pump lasers. In alternative approaches,
frequency converted tunable radiation in the UV is achieved with high
efficiency from compact, high beam quality devices.