Broad tunable photonic microwave generation in an optically pumped spin-VCSEL with optical feedback stabilization.
Broad tunable photonic microwave generation in an optically pumped spin-VCSEL with optical feedback stabilization.
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DOI：
10.1364/ol.431184
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发表时间：
2021-07
期刊：
影响因子：
3.6
通讯作者：
Yu Huang;Pei Zhou;Nianqiang Li
中科院分区：
文献类型：
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作者：
Yu Huang;Pei Zhou;Nianqiang Li
提出并数值模拟了一种基于自旋极化垂直腔面发射激光器（spin-VCSEL）单周期动态振荡的光子微波产生方案。利用二维映射系统地研究了产生的微波的振荡幅度、频率、功率和线宽的演化。结果表明，所产生的微波信号的主线宽约为3 MHz，具有较宽的可调谐频率（从几GHz到几百GHz），这得益于自旋垂直腔面发射激光器中的双折射诱导振荡。此外，在光反馈的帮助下，通过增加反馈强度和反馈延迟时间，可以有效地最小化微波线宽（~ 51 kHz）。重要的是，这封信提供了在微波光子领域需要一个可行的和资源有效的微波源的应用前景。
We propose and numerically demonstrate a photonic microwave generation scheme based on the dynamic period-one oscillation of a solitary spin-polarized vertical-cavity surface-emitting laser (spin-VCSEL). The evolution of the oscillation amplitude, frequency, power, and linewidth of the generated microwave is systematically investigated by using two-dimensional maps. The results show that the generated microwave signals with a dominant linewidth of about 3 MHz have a broad tunable frequency (from several gigahertz to hundreds of gigahertz), which benefits from the birefringence-induced oscillation in spin-VCSELs. Moreover, with the help of optical feedback, the microwave linewidth can be effectively minimized (∼51kHz) by increasing the feedback strength and feedback delay time. Importantly, this Letter offers prospects for applications requiring a feasible and resource-efficient microwave source in microwave photonic fields.