Polarization switching characteristics in a 1550??nm VCSEL subject to circularly polarized optical injection

Abstract

Polarization switching (PS) characteristics in a 1550 nm vertical-cavity surface-emitting laser (VCSEL) subject to circularly polarized optical injection (CPOI) are experimentally investigated. The results show that, under different biased current, a solitary 1550 nm VCSEL can oscillate at y polarization mode (y mode), two polarization components (PCs) coexistence or x polarization mode (x mode). The PS characteristics induced by CPOI for the VCSEL operating at y mode and x mode are analyzed and the evolutions of dynamical states with the injected power are discussed. Additionally, the mappings of nonlinear dynamical states are given in the parameters space of the injected power and frequency detuning.

High-Speed Optical Chaotic Data Selection Logic Operations with the Performance of Error Detection and Correction

“…When VCSELs are subjected to optical injection or optical feedback, they easily generate chaotic x-PC and chaotic y-PC which are orthogonal to each other [12][13][14][15][16][17][18][19][20][21]. The dynamic behaviors such as polarization switching and polarization bistability in VCSELs can be induced by changing the pump current, the strength of the injected light or the detuning of the injected light [22][23][24][25][26]. Therefore, based on the high-dimensional chaotic system of VCSELs, optical chaotic logic operations with different functions can be designed and implemented by using its rich polarization modes.…”