Abstract

A Ti:Al₂O₃ laser system generating synchronized pulses at two different wave lengths is attractive for many applications such as spectroscopy, lidar and difference-frequency mixing (DFM).¹ However, instability of synchronization of two pulses in the order of pulse width of Ti:Al₂O₃ laser has remained although two Ti:Al₂O₃ lasers have been synchronized by timing-controlled two excitation lasers with an electrical pulse generator. In this work, we have developed a two-color pulsed Ti:Al₂O₃ laser system by means of a simple stable-synchronization technique. Furthermore, using synchronized tunable pulses, we have demonstrated generation of tunable infrared pulses from 6.3 μm to 9.7 μm by difference-frequency mixing in a AgGaS₂.

© 1995 IEEE