DocumentCode :
1055771
Title :
Nonlinear-optical device characteristics of gaseous saturable absorbers
Author :
Christensen, C. Paul ; Schwarz, S.E.
Author_Institution :
University of Southern California, Los Angeles, CA, USA
Volume :
10
Issue :
3
fYear :
1974
fDate :
3/1/1974 12:00:00 AM
Firstpage :
338
Lastpage :
346
Abstract :
Measurements have been made of the third-order nonlinear-optical susceptibilities of gaseous infrared saturable absorbers. These coefficients are relevant to mode locking of infrared lasers such as CO2 . The measurements are in good agreement with a theory based on a four-level model of the absorber. Earlier mode-locking observations are interpreted in light of the new data. The value of the transition moment and some other parameters of SF6 are deduced from the measurements. For SF6 at 
torr, the third-order nonlinear coefficient is in the range 
C.m/V3, when interacting waves differ in frequency by less than the molecular collision frequency. We find that the average dipole transition moment for SF6 near the 
or 
lines of CO2 is approximately 0.1-0.2 Debye. The nonlinear coefficient of CH3 F is typically three orders of magnitude smaller than that of SF6 .
torr, the third-order nonlinear coefficient is in the range C.m/V3, when interacting waves differ in frequency by less than the molecular collision frequency. We find that the average dipole transition moment for SF or lines of COKeywords :
Frequency; Gas lasers; Laser mode locking; Laser theory; Laser transitions; Nonlinear optics; Optical devices; Optical polarization; Optical pulse generation; Optical saturation;
fLanguage :
English
Journal_Title :
Quantum Electronics, IEEE Journal of
Publisher :
ieee
ISSN :
0018-9197
Type :
jour
DOI :
10.1109/JQE.1974.1068135
Filename :
1068135
Link To Document :
