TY - JOUR

T1 - Quantum Dot Lasers Subject to Polarization-Rotated Optical Feedback

AU - Lin, Hong

AU - Hong, Yanhua

AU - Ourari, Salim

AU - Huang, Tianyao

AU - Yang, Chen

PY - 2020/2

Y1 - 2020/2

N2 - Dynamics of a multimode quantum dot laser with polarization-rotated optical feedback is investigated in a wide range of bias current. The results reveal that the laser is more sensitive to optical feedback when the polarization of feedback beam is rotated a large angle from the original polarization, which is different from the results in DFB lasers. Anticorrelated fluctuations between orthogonal polarizations are observed in a certain range of selected polarizations. Accordingly, dynamics in the total power can be weaker than that in a selected polarization. The anticorrelated polarization dynamics may be related to different polarizations of longitudinal modes.

AB - Dynamics of a multimode quantum dot laser with polarization-rotated optical feedback is investigated in a wide range of bias current. The results reveal that the laser is more sensitive to optical feedback when the polarization of feedback beam is rotated a large angle from the original polarization, which is different from the results in DFB lasers. Anticorrelated fluctuations between orthogonal polarizations are observed in a certain range of selected polarizations. Accordingly, dynamics in the total power can be weaker than that in a selected polarization. The anticorrelated polarization dynamics may be related to different polarizations of longitudinal modes.

KW - Optical feedback

KW - polarization

KW - quantum dot lasers

U2 - 10.1109/JQE.2019.2953518

DO - 10.1109/JQE.2019.2953518

M3 - Article

VL - 56

JO - IEEE Journal of Quantum Electronics

JF - IEEE Journal of Quantum Electronics

SN - 0018-9197

IS - 1

M1 - 2000308

ER -