The Effect  of Polarization Flipping Point on Polarization Dynamics by Optical Feedback Technique

Ehsan Ali Abed; Jassim Mohammed Najim; Suaded Salman Ahmed

doi:10.24996/ijs.2021.62.3.16

Authors

Ehsan Ali Abed Department of Physics, University of Anbar, Anbar, Iraq
Jassim Mohammed Najim Department of Physics, University of Anbar, Anbar, Iraq
Suaded Salman Ahmed Department of Physics, University of Baghdad, Baghdad, Iraq

DOI:

https://doi.org/10.24996/ijs.2021.62.3.16

Keywords:

Laser, Optical feedback, Polarization flipping point, hysteresis loop

Abstract

The effect of the optical feedback on the polarization flipping point and hysteresis loop was studied. The polarization flipping occurred at all angles between the polarizer axis and the laser polarization. The polarization flipping point changed by an optical feedback occurred at angles from 0° to 90°. Ability of choosing or controlling the laser polarization was determined by changing the direction of vertical and horizontal polarization by polarizer rotation in the external cavity from 0° to 90°.