基于外腔自注入的混合集成低噪声线性调频激光源数据集

该论文报道了一种宽频带混合集成低噪声线性啁啾调频连续波激光源。通过二维热调谐，激光光源在100 Hz啁啾频率下的调频带宽为10.3 GHz，在1kHz啁啾频率下的调频带宽为5.6 GHz。在静态工作下测量了49.9 Hz的本征线宽和42 GHz的连续频率调谐带宽。此外，通过对激光源进行预失真线性化处理，在光纤长度测量实验中可以区分45 km距离上3 m的长度差，显示了其在超长光纤传感和FMCW光探测测距方面的应用潜力。

This paper reports a broadband hybrid-integrated low-noise linearly chirped frequency-modulated continuous-wave (FMCW) laser source. Through two-dimensional thermal tuning, the laser source achieves a frequency chirp bandwidth of 10.3 GHz at a chirp frequency of 100 Hz, and 5.6 GHz at 1 kHz. Its intrinsic linewidth of 49.9 Hz and continuous frequency tuning bandwidth of 42 GHz were measured under static operation. Furthermore, by applying pre-distortion linearization processing to the laser source, the system can distinguish a length difference of 3 m at a distance of 45 km in fiber length measurement experiments, demonstrating its application potential in ultra-long fiber sensing and FMCW optical detection ranging.

搜集汇总

背景与挑战

背景概述

该数据集来源于清华大学，报道了一种基于外腔自注入的混合集成低噪声线性调频激光源，其核心特点是宽频带和低噪声性能，例如在100 Hz啁啾频率下调频带宽达10.3 GHz，静态本征线宽为49.9 Hz。数据集展示了该激光源在超长光纤传感和FMCW光探测测距中的应用潜力，能够实现高精度距离测量（如区分45 km距离上3 m的长度差），数据量较小，共1.56MB，包含7个文件。