We propose and numerically investigate the use of birefringent vertical-cavity surface-emitting lasers (VCSELs) under the injection and modulation of spin polarized electrons for application to analog radio over fiber (RoF) systems. Injection current and electron spin polarization in a birefringent VCSEL are individually modulated for generating data signals and a millimeter-wave carrier and a polarizer is used to combine two orthogonal polarizations. A preliminary experiment without spin injections confirms that 24-GHz carrier generation originating from polarization-mode splitting of the birefringent VCSEL can be used for the heterodyne detection of square-wave signals with a period of 6.4 ns. Our findings mark the first step in applying spin-injected birefringent VCSELs having the capability of ultra-high-frequency modulation for application to analog RoF systems.

中文翻译：

---

用于模拟光纤无线系统的自旋注入双折射VCSEL

我们提出并在数值上研究了在自旋极化电子的注入和调制下使用双折射垂直腔面发射激光器（VCSEL）的情况，以应用于光纤模拟（RoF）系统。对双折射VCSEL中的注入电流和电子自旋偏振分别进行调制以生成数据信号，并且使用毫米波载波和偏振器来组合两个正交偏振。没有自旋注入的初步实验证实，源自双折射VCSEL偏振模式分裂的24 GHz载波生成可用于周期为6.4 ns的方波信号的外差检测。