| Title | On-chip high-efficiency wavelength multicasting of PAM3/PAM4 signals using low-loss AlGaAs-on-insulator nanowaveguides |
| Authors | Qin, Jun Shu, Haowen Chang, Lin Xie, Weiqiang Tao, Yuansheng Jin, Ming Wang, Xingjun Bowers, John E. |
| Affiliation | Peking Univ, Sch Elect Engn & Comp Sci, Dept Elect, State Key Lab Adv Opt Commun Syst & Networks, Beijing 100871, Peoples R China Univ Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USA Peking Univ, Minist Educ, Nanooptoelect Frontier Ctr, Beijing 100871, Peoples R China |
| Keywords | SILICON-NITRIDE WAVE-GUIDES GENERATION CONVERSION |
| Issue Date | 15-Aug-2020 |
| Publisher | OPTICS LETTERS |
| Abstract | Nonlinear optics-based optical signal processing (OSP) could potentially increase network flexibility because of its transparency, tunability, and large bandwidth. A low-loss, high nonlinearity, and compact integrated material platform is always the pursuit of OSP. In this Letter, a high-efficiency, one-to-six wavelength multicasting of 10 Gbaud pulse-amplitude modulation (PAM3/PAM4) signals using a 6 cm long Al0.2Ga0.8As-on-insulator nanowaveguide is experimentally demonstrated for the first time, to the best of our knowledge. The low-loss, combined with the high nonlinear coefficient of the AlGaAsOI platform, enables us to achieve -11.2 dB average conversion efficiency clear eye diagrams and <2.1 dB power penalty at KP4-forward error correction threshold (2.4 x 10(-4)) for all the output PAM3/PAM4 multicasting channels. This result points to a new generation of nonlinear OSP photonic integrated circuits. (C) 2020 Optical Society of America |
| URI | http://hdl.handle.net/20.500.11897/591563 |
| ISSN | 0146-9592 |
| DOI | 10.1364/OL.398777 |
| Indexed | SCI(E) |
| Appears in Collections: | 信息科学技术学院 区域光纤通信网与新型光通信系统国家重点实验室 |
