华体会官方网页版-华体会(中国):A novel bidirectionally operated chirped quantum-dot based semiconductor optical amplifier using a dual ground state spectrum
Author(s): Cao, V (Cao, Victoria); Pan, SJ (Pan, Shujie); Wu, DY (Wu, Dingyi); Zhang, HG (Zhang, Hongguang); Tang, MC (Tang, Mingchu); Seeds, A (Seeds, Alwyn); Liu, HY (Liu, Huiyun); Xiao, X (Xiao, Xi); Chen, SM (Chen, Siming)
Source: APL PHOTONICS?Volume: 9?Issue: 4??Article Number: 046110??DOI: 10.1063/5.0194677??Published Date: 2024 APR 1?
Abstract: Bi-directionally operated amplifiers enabling efficient utilization of transmission wavelengths are promising candidates in densely integrated photonic circuits for future cost-effective, power-efficient optical networks. Here, we demonstrate, for the first time, a broadband semiconductor optical amplifier (SOA) based on a novel chirped multilayered quantum dot (QD) structure, which is suitable for bi-directional amplification via the dual ground state (GS) emission spectrum. The fabricated QD SOA has achieved a maximum 3-dB gain bandwidth of 50 nm while retaining on-chip gain above 20 dB at both GS wavelengths. Under an optimum pumping current of 280 mA, the bi-directionally operated QD SOA has shown around 10 dB receiver sensitivity improvement in ultra-high-speed 100 Gbaud non-return-to-zero and 53.125 Gbaud four-level pulse amplitude modulation data transmission systems.
Accession Number: WOS:001206857000001
ISSN: 2378-0967
