Author(s): He, YM (He, Yiming); Zhang, ZK (Zhang, Zhongkai); Lv, ZR (Lv, Zunren); Yang, T (Yang, Tao); Lu, D (Lu, Dan); Zhao, LJ (Zhao, Lingjuan)

Source: IEEE PHOTONICS TECHNOLOGY LETTERS Volume: 32 Issue: 21 Pages: 1353-1356 DOI: 10.1109/LPT.2020.3025209 Published: NOV 1 2020

Abstract: In this letter, we report the dynamics and performance of a 1.3-mu m InAs/GaAs directly modulated quantum-dot laser (QDL) under strong feedback. At a direct modulation speed of 10 Gbps, error-free back-to-back operation of the QDL under a feedback level of -12 dB was realized. Feedback-resistant fiber transmission over 20 km under a maximum optical feedback level of -9 dB was also demonstrated with a power penalty of less than 1 dB at a bit error ratio (BER) of 10(-3). The performance of the QDL was compared with directly modulated quantum-well laser (QWL) with similar parameters, showing a clear advantage in feedback resistance of QDL.

Accession Number: WOS:000574738000003

ISSN: 1041-1135

eISSN: 1941-0174

Full Text: https://ieeexplore.ieee.org/document/9201085/