Tunable electro-optically cavity-dumped RF excited z-fold waveguide CO/sub 2/ laser with two channels

In order to provide ideal light source for coherent laser radar, we designed z-fold electro-optically cavity-dumped RF excited waveguide CO/sub 2 /laser with two channels. One channel served as transmitter laser include z-fold waveguide resonator with electrooptically modulated system can output cavity-dumped laser. The pulse width can be tuned from 18 ns to 32 ns. Another single channel used as local laser can output CW laser. The two channels are excited by the same RF source. This kind of structure has the advantages of high offset frequency stability, low cost, easy manufacturing and small size over two separated lasers.