高效、高功率、窄线宽连续波光量子点半导体梳状激光器。

Efficient, high-power, narrow-linewidth, continuous-wave quantum-dot semiconductor comb laser.

作者信息

Buyalo Mikhail, Gubenko Alexey, Mikhrin Sergey, Mikhrin Vladimir, Kovsh Alexey R, Krishnamoorthy Ashok V

机构信息

Innolume GmbH, Dortmund, Germany.

Alfalume Inc., Los Gatos, CA, USA.

出版信息

Sci Rep. 2024 Feb 20;14(1):4197. doi: 10.1038/s41598-024-53609-9.

DOI:10.1038/s41598-024-53609-9

PMID:38378848

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10879486/

Abstract

We report a continuous-wave, O-band quantum-dot semiconductor comb laser for WDM optical interconnects exhibiting a 2.2 THz optical bandwidth with up to 89 comb wavelengths spaced at 25 GHz, over 30% peak ex-facet electrical-to-optical power conversion efficiency, up to 270 mW of usable laser power, relative intensity noise below - 135 dB/Hz per individual mode, individual laser mode linewidth of 140 kHz, mode beating linewidths of 50 kHz across all modes, and stable far-field output with 75% coupling efficiency to PM fiber in a butterfly package.

摘要

我们报道了一种用于波分复用（WDM）光互连的连续波O波段量子点半导体梳状激光器，其具有2.2太赫兹的光带宽，多达89个梳状波长，间隔为25吉赫兹，峰值外腔电光功率转换效率超过30%，可用激光功率高达270毫瓦，每个单独模式的相对强度噪声低于-135分贝/赫兹，单个激光模式线宽为140千赫兹，所有模式的模式拍频线宽为50千赫兹，并且在蝶形封装中与保偏光纤的耦合效率为75%，具有稳定的远场输出。