Amplitude noise reduction of 50 dB in colliding-pulse mode-locking dye lasers.
Spurious sidebands observed in the noise spectrum of colliding-pulse mode-locking dye lasers result from coupling of the longitudinal mode beating modulations of the (argon-ion) pump laser with the dye laser. We achieve a 50-dB amplitude noise reduction at the mixing frequencies by inserting a single-frequency étalon in the argon-laser cavity. Furthermore, we find the amplitude noise of the colliding-pulse mode-locking laser to be entirely dominated by the (plasma discharge) noise of the argon laser.
Nuss
M C
MC
Keller
U
U
Harvey
G T
GT
Heutmaker
M S
MS
Smith
P R
PR