410 Gbps WDM communication system based on a tunable V-cavity semiconductor laser

• Published in: Optics express Vol. 31; no. 17; p. 28174
• Main Authors: Chen, Tuo, Liu, Zheqi, Yang, Qiaochu, Meng, Jianjun, Wang, Tianshu, He, Jian-Jun, Li, Qiushun, Li, Mingyu
• Format: Journal Article
• Language: English
• Published: 14-08-2023
• ISSN: 1094-4087; 1094-4087
• DOI: 10.1364/OE.492566

This paper is about the V-cavity tunable semiconductor laser with a 1550 nm band used as a transmitter to build a wavelength division multiplexing (WDM) optical fiber communication link. In the experiment, a 20 km optical fiber communication link with a reasonable eye diagram and low bit error rate (BER) transmitted by 40 Gbps can be established. The experimental results show that a single laser can achieve a wavelength tuning range of 25 nm, reach 32 channels at a 100 GHz frequency interval, and the average side mode suppression ratio (SMSR) is above 39 dB. The advantages and application potential of V-cavity tunable semiconductor laser (VCL) for wavelength routing in optical communication networking are verified by experiments.