Abstract
Future super-computer interconnect systems and data centers request ultrahigh data rate links at low cost and power consumption, for which transmitters with a high level of integration and spectral efficient formats are key components. We report 60 Gb/s pulse-amplitude modulation (PAM-4) of an optical signal using a dual-microring silicon photonics circuit, making a low-power, digital-to-analog converter (DAC)-less PAM modulator. The power consumption is evaluated below 100 fJ/bit, including thermal adjustments. To the best of our knowledge, these results feature the lowest reported power consumption for PAM signaling in a DAC-less scheme for data rate beyond 40 Gb/s.
© 2016 Optical Society of America
Full Article | PDF ArticleMore Like This
Zhaobang Zeng, Lemeng Leng, Peiyan Zhao, Chenbin Zhang, Ding Ding, Dun Mao, Tingyi Gu, and Wei Jiang
Opt. Lett. 47(4) 850-853 (2022)
David W. U. Chan, Xiong Wu, Chao Lu, Alan Pak Tao Lau, and Hon Ki Tsang
Opt. Lett. 48(4) 1036-1039 (2023)
Raphaël Dubé-Demers, Sophie LaRochelle, and Wei Shi
Optica 3(6) 622-627 (2016)