The characteristics of a RF-excited all-metal CO$-2$/ portable laser with 1.0 m infrared optical fiber are described. The laser excited by 45.38 MHz can give 12 W- output power with square-pulse waveform (4 - 15 KHz) at the end of IR-fiber's coupler. The power-density is about 8 KW/cm$+2$/. Also using CW-CO$-2$/ laser the IR-fiber (0.2 db/m) has transmitted 10$+2$/W (30 KW/cm$+2$/) laser power in the laboratory conditions.
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