A Ne-H-2-CuBr laser (lambda 510.6, 578.2 nm) is reported, which produc
ed an average output power of 120 W at 2.5% efficiency (based on store
d energy) and 100 W at 3% efficiency, These output power and efficienc
y figures are record values for copper bromide lasers, The sealed-off
device produced maximum output power at a pulse recurrency frequency (
PRF) of 17.5 kHz. Laser operating characteristics and electrical param
eters are described.