Jw. Choi et al., Frequency stabilization of a radio frequency excited CO2 laser using the optogalvanic effect, REV SCI INS, 69(12), 1998, pp. 4038-4040
Frequency stabilization of a rf excited CO2 laser on the peak of the Dopple
r broadened gain curve using the optogalvanic effect generated from the las
er itself is achieved. The optogalvanic signal is directly coupled from a r
f discharge chamber via a capacitor into a detector and a lock-in stabilize
r. The frequency stability is estimated to be better then 3 x 10(-8). (C) 1
998 American Institute of Physics. [S0034- 6748(98)02512-X].