MMI combiner integrated 4 × 50 Gb/s array of directly modulated 1.3 µm DFB lasers with MQW-based passive reflectors
Year: 2024
Type: article
Abstract: We report an InP-based MMI combiner integrated array of 4 channel directly modulated 1.3 µm distributed feedback (DFB) lasers. Each laser channel in the array has an active DFB section and a passive distributed Bragg reflector (DBR) section. Both sections have the same InGaAlAs multi-quantum wells (MQWs) and the same grating pitch, which simplify the device design and fabrication. The 3 dB direct modulation bandwidth is larger than 28 GHz for all four channels. 25 Gb/s NRZ and 50 Gb/s PAM4 data modulations on each channel are demonstrated. The reported device is a promising low-cost monolithic light source for high capacity WDM optical communication systems.
Source: Optics Express
DOI: 10.1364/oe.545474
Authors: Xuyuan Zhu, Xiaobo La, Huan Li, Daibing Zhou, Dan Lu, Lingjuan Zhao, Song Liang
Institution: University of Chinese Academy of Sciences
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,270
OpenAlex ID: W4405822696