中国物理B ›› 2014, Vol. 23 ›› Issue (2): 27304-027304.doi: 10.1088/1674-1056/23/2/027304
• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇 下一篇
章杰a, 俞金玲a, 程树英a, 赖云锋a, 陈涌海b
Zhang Jie (章杰)a, Yu Jin-Ling (俞金玲)a, Cheng Shu-Ying (程树英)a, Lai Yun-Feng (赖云锋)a, Chen Yong-Hai (陈涌海)b
摘要: The mode splitting induced by electro-optic birefringence in a P–I–N InGaAs/GaAs/AlGaAs vertical-cavity surface-emitting laser (VCSEL) has been studied by polarized electroluminescence (EL) at room temperature. The polarized EL spectra with E‖[110] and E‖[110] directions, are extracted for different injected currents. The mode splitting of the two orthogonal polarized modes for a VCSEL device is determined, and its value increases linearly with the increasing injected current due to electro-optic birefringence. This article demonstrates that the polarized EL is a powerful tool to study the mode splitting and polarization anisotropy of a VCSEL device.
中图分类号: (Quantum wells)