Characteristics of a single-frequency sealed-off CO2amplifier

The measured small-signal gain of 4.8 dB/m for a sealed-off COs amplifier with average bore of 25 mm compares favorably with the highest gain published for a flowing-gas type. The saturated gain for this 9-meter amplifier was 1.2 dB/m with 95-watts output when sealed off and 1.3 dB/m with 110-watts output for a flowing-gas system.