Li Nanxi, Chen Guanyu, Lim Leh Woon, Ho Chong Pei, Xue Jin, Fu Yuan Hsing, Lee Lennon Y T
Institute of Microelectronics, A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, Singapore 138634, Singapore.
Nanophotonics. 2022 Jun 3;11(13):2989-3006. doi: 10.1515/nanoph-2022-0146. eCollection 2022 Jun.
To meet the high demand of data transmission capacity, optical communications systems have been developed. In order to increase the channel numbers for larger communication bandwidth, multi-mode lasers and laser arrays can be used. As an alternative coherent light source, optical frequency comb (OFC) contains multi-wavelength signal, and hence enables communication with data stream of tens of terabit/s. Fully integrated electrically driven OFCs are expected as a compact, robust, and low-cost light source for data communication. In this review article, the recent development progress on fully integrated electrically driven OFC generators are reviewed, with focus on the demonstrations in the past five years. Based on comb generation approaches, the works are categorized into two main types: one is OFC generators based on four-wave mixing in high- resonator, and the other is OFC generators based on mode-locked laser. At the end, a summary and future outlook are provided.
为满足对数据传输容量的高需求，人们开发了光通信系统。为了增加用于更大通信带宽的信道数量，可以使用多模激光器和激光阵列。作为一种替代的相干光源，光学频率梳（OFC）包含多波长信号，因此能够实现数十太比特/秒数据流的通信。全集成电驱动光学频率梳有望成为用于数据通信的紧凑、坚固且低成本的光源。在这篇综述文章中，回顾了全集成电驱动光学频率梳发生器的最新发展进展，重点关注过去五年的相关演示。基于频率梳产生方法，这些工作主要分为两类：一类是基于高谐振器中四波混频的光学频率梳发生器，另一类是基于锁模激光器的光学频率梳发生器。最后给出了总结和未来展望。
