Fully integrated electrically driven optical frequency comb at communication wavelength

Abstract To meet the high demand of data transmission capacity, optical communications systems have been developed. In order to increase channel numbers for larger communication bandwidth, multi-mode lasers and laser arrays can be used. As an alternative coherent light source, frequency comb (OFC) contains multi-wavelength signal, hence enables with stream tens terabit/s. Fully integrated electrically driven OFCs are expected as a compact, robust, low-cost source communication. this review article, recent development progress on fully OFC generators reviewed, focus demonstrations in past five years. Based generation approaches, works categorized into two main types: one is based four-wave mixing high- Q resonator, other mode-locked laser. At end, summary future outlook provided.