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基于周期性极化铌酸锂晶体的线性电光效应耦合波理论,数值研究了电光调制对外部光反馈垂直腔表面发射激光器(VCSEL)输出矢量混沌偏振模的操控.研究结果表明,VCSEL输出的偏振度随着电光晶体的长度或施加于电光晶体的外电场强度成周期性转换,控制一定的施加外电场强度和晶体的长度,激光器的不同参数下引起初始混沌偏振态都可以转换为其他任意混沌偏振态.特别是合理选择一定的施加外电场强度或晶体长度.VCSEL输出的任意混沌偏振模可以转换为完全一致的两线性混沌偏振模(x和y偏振),即两线性混沌偏振模的能量能够达到稳定和万全均衡.
Based on the linear electro-optical coupled wave theory of periodically poled lithium niobate crystals, the electro-optic modulation is used to control the chaotic polarization mode of the output of an external optical feedback vertical cavity surface emitting laser (VCSEL). The results show that the polarization of VCSEL output Degree As the length of the electro-optic crystal or the intensity of the external electric field applied to the electro-optic crystal periodically switches to control the applied external electric field strength and the length of the crystal, the initial chaos polarization state under different parameters of the laser can be converted into any other chaos In particular, it is reasonable to choose a certain applied external electric field strength or crystal length. Any chaotic polarization mode output from VCSEL can be transformed into two identical chaotic polarization modes (x and y polarization), that is, the energy of two linear chaotic polarization modes To achieve a stable and balanced.