Complete chaotic synchronization mechanism of polarization mode of VCSEL with anisotropic optical feedback

• Published in: Optics communications Vol. 282; no. 8; pp. 1631 - 1639
• Main Authors: Zhong, Dong-Zhou, Wu, Zheng-Mao
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 15.04.2009; Elsevier
• Subjects: Anisotropic optical injection; Complete synchronization; Exact sciences and technology; Fundamental areas of phenomenology (including applications); Lasers; Linear polarization mode; Optics; Physics; Semiconductor lasers; laser diodes; Vertical-cavity semiconductor; Complete synchronization; Vertical-cavity semiconductor; Anisotropic optical injection; Linear polarization mode; Optical injection; Threshold current; Synchronization; Polarization mode; Vertical cavity laser; Injection current; Semiconductor lasers; Optical feedback; Surface emitting lasers; Linear polarization
• ISSN: 0030-4018; 1873-0310
• DOI: 10.1016/j.optcom.2009.01.006

We numerically investigate the complete chaotic synchronization mechanism of polarization mode of VCSEL with anisotropic optical feedback. Firstly, the synchronization quality of the x-linear polarization (LP) mode and the y-LP mode are both periodically changed with the angle θ between the polarizer and the light axes. Secondly, in a enough large scale region of the feedback coefficient and the injection current, where each LP mode can obtained good synchronization quality when the angle θ exists in the former half period region and the injection current is fixed at a certain value, which is over the threshold current. Under this condition, their synchronization quality is independent of the polarization states. By contrast, in the latter half period region of the angle θ where each LP mode can be obtained very instable and inferior synchronized quality. At last, the robustness of the synchronization scheme is sensitive to the internal and external parameter mismatch between the transmitter–VCSEL and the receiver–VCSEL.