Title :
Frequency stabilization of a radio frequency excited CO2 laser using the photoacoustic effect
Author :
Choi, Jong-woon ; Yu, Moon-jong
Author_Institution :
Dept. of Inf. & Commun., Honam Univeristy, Gwangju, South Korea
Abstract :
Frequency stabilization of a RF excited CO2 laser on the peak of the Doppler broadened gain curve using the photoacoustic effect generated from the laser itself is achieved. The photoacoustic signal is directly coupled from a RF discharge chamber using a condenser microphone into an amplifier and a lock-in stabilizer. The frequency stability is estimated to be better then 3×10-8.
Keywords :
Doppler effect; gas lasers; laser frequency stability; photoacoustic effect; CO2; Doppler broadened gain curve; RF discharge chamber; condenser microphone; frequency stabilization; gas laser; photoacoustic effect; photoacoustic signal; radio frequency excited CO2 laser; Electron tubes; Gas lasers; Laser excitation; Laser modes; Laser stability; Laser transitions; Mirrors; Photoacoustic effects; Radio frequency; Vibration measurement;
Conference_Titel :
Aerospace & Electronics Conference (NAECON), Proceedings of the IEEE 2009 National
Conference_Location :
Dayton, OH
Print_ISBN :
978-1-4244-4494-6
Electronic_ISBN :
978-1-4244-4495-3
DOI :
10.1109/NAECON.2009.5426609
