For the first time, a dynamic model is used to design all-optical polarization rotator for ultrashort pulse in semiconductor optical amplifier (SOA). When 200 fs probe and pump pulses co-propagate in SOA, the azimuth angle of probe polarization is rotated by pump energy due to SOA nonlinearities. As a result of azimuth angle rotation (AAR) phenomenon, the state of polarization (SOP) of probe pulse also rotates. In addition to the pump energy, AAR also depends on the input probe pulse characteristics and the SOA bias current. The input probe characteristics include its input energy level, input Stokes vector, and input degree of polarization. The results of our research indicate that the output probe azimuth angle can be rotated up to 113 deg by the mentioned factors. Consequently, the probe SOP can be changed from the quasihorizontal state to the quasivertical state.
You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither SPIE nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the SPIE website.