摘要
We report 20 Gb/s transmission of four-level pulse amplitude modulation （PAM） signal using a directly modulated tunable distributed Bragg reflector （DBR） laser. Transmission distance over 20 km was achieved without using optical amplifiers and optical dispersion compensation modules. A wavelength tuning range of 11.5 nm and a 3 dB bandwidth greater than 10 GHz over the entire wavelength tuning range were obtained.
We report 20 Gb/s transmission of four-level pulse amplitude modulation （PAM） signal using a directly modulated tunable distributed Bragg reflector （DBR） laser. Transmission distance over 20 km was achieved without using optical amplifiers and optical dispersion compensation modules. A wavelength tuning range of 11.5 nm and a 3 dB bandwidth greater than 10 GHz over the entire wavelength tuning range were obtained.
作者
周代兵
陆丹
梁松
赵玲娟
王圩
Daibing Zhou;Dan Lu;Song Liang;Lingjuan Zhao;Wei Wang(Key Laboratory of Semiconductor Materials Science,Institute of Semiconductors,Chinese Academy of Sciences,College of Materials Science and Opto-Eleetronic Technology,University of Chinese Academy of Sciences,Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices,Beijing 100083,China)
基金
supported by the National Key Research and Development Program of China(Nos.2016YFB0402301 and 2017YFF0206103)
the National Natural Science Foundation of China(Nos.61320106013,61635010,61474112,61574137,and 61504170)
