4.7 Article

Integrated Phased Array for Scalable Vortex Beam Multiplexing

期刊

JOURNAL OF LIGHTWAVE TECHNOLOGY
卷 41, 期 7, 页码 2070-2078

出版社

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JLT.2022.3217976

关键词

Couplers; Stars; Multiplexing; Optical fiber polarization; Optical fiber couplers; Crosstalk; Optical fiber devices; Orbital angular momentum; photonic integrated circuits; silicon photonics; space division multiplexing; wavelength-division multiplexing

向作者/读者索取更多资源

In this research, an optical phased array (OPA) with two-dimensional antennas is used to generate circularly polarized OAM beams. The OAM multiplexer supports up to 46 simultaneous spatial modes and incorporates intensity tuning capability to improve the OAM quality and reduce crosstalk.
Orbital angular momentum (OAM) modes have low model interactions during fiber propagation at data center distances, and thus are suitable for ultra-high capacity systems at low digital signal processing. Generating OAM modes using free-space setups is useful for proof-of-concept experiments, but is not a scalable solution. We use an optical phased array (OPA) with two-dimensional antennas for on-chip circularly polarized OAM beam generation. Our previous work demonstrated an OAM multiplexer for lower-order modes. In this work, we demonstrate an OAM multiplexer that supports a record of 46 (23 per polarization) simultaneous spatial modes up to OAM order 11. We also improve the crosstalk performance of our multiplexer. We incorporate an intensity tuning capability that substantially improves the OAM quality by enabling a uniform power distribution across the antennas. The worst-case crosstalk for the supported OAM5 to OAM11 are found experimentally to be better than $-12$ dB, with OAM10 achieving -17.2 dB.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据