DocumentCode :
1141266
Title :
Doppler-effect mechanism for laser Q switching with a rotating mirror
Author :
Kafri, O. ; Speiser, Shammai ; Kimel, Sol
Author_Institution :
Israel Institute of Technology, Haifa, Israel
Volume :
7
Issue :
3
fYear :
1971
fDate :
3/1/1971 12:00:00 AM
Firstpage :
122
Lastpage :
126
Abstract :
A novel description, based on the Doppler effect, is given for laser Q switching by a rotating mirror. Fourier analysis yields a relation between the width of the pulse \\Delta t_{1/2} and the angular velocity of the mirror \\dot{\\theta} . It is shown that for laser emission having a Gaussian spatial amplitude profile the temporal shape of a Q -switched pulse is also Gaussian. It is predicted that for different lasers Q switched by mirrors rotating with the same \\dot{\\theta}, \\Delta t_{1/2} will depend on the wavelength of the laser. For a ruby laser, measurements are reported of \\Delta t_{1/2} versus \\dot{\\theta} for different configurations of the cavity into which vertical and horizontal slits were introduced.
Keywords :
Angular velocity; Chemical lasers; Doppler effect; Laser modes; Laser theory; Mirrors; Optical pulse generation; Optical pulses; Pump lasers; Space vector pulse width modulation;
fLanguage :
English
Journal_Title :
Quantum Electronics, IEEE Journal of
Publisher :
ieee
ISSN :
0018-9197
Type :
jour
DOI :
10.1109/JQE.1971.1076608
Filename :
1076608
Link To Document :
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