Title :
Polarization control of a high power laser by adjoint feedback control
Author :
Blaszuk, Paul R. ; Benda, John A. ; Forgham, James L. ; Cohen, Harold L.
Author_Institution :
TekQuest, Lebanon, CT, USA
fDate :
4/1/1993 12:00:00 AM
Abstract :
A technique for polarizing a high-power laser with unstable resonator optics that places the polarizing elements in a low power feedback path external to the parent resonator structure is described. The technique has been used to polarize a high-power industrial CO2 laser. Rejection ratios for the unwanted polarizations can exceed 20 dB. The polarization vector can be rotated at will by rotating the polarizer in the low power beam path
Keywords :
carbon compounds; gas lasers; laser cavity resonators; optical polarisers; adjoint feedback control; high power laser; industrial CO2 laser; low power beam path; low power feedback path; parent resonator structure; polarization control; polarization vector; polarizing elements; unstable resonator optics; Feedback control; Laser beams; Laser feedback; Laser modes; Mirrors; Optical control; Optical feedback; Optical resonators; Polarization; Power lasers;
Journal_Title :
Quantum Electronics, IEEE Journal of
