Asymmetrical sampling structure to improve the single-longitudinal-mode property based on reconstruction-equivalent-chirp technology.
Asymmetrical sampling structure to improve the single-longitudinal-mode property based on reconstruction-equivalent-chirp technology.
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DOI：
10.1364/ol.35.003123
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发表时间：
2010-09
期刊：
影响因子：
3.6
通讯作者：
Yating Zhou;Yue-chun Shi;Simin Li;Shengchun Liu;Xiangfei Chen
中科院分区：
文献类型：
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作者：
Yating Zhou;Yue-chun Shi;Simin Li;Shengchun Liu;Xiangfei Chen
我们提出了一种基于重构等效线性调频技术的特殊非对称采样结构，可以有效抑制采样布拉格光栅半导体激光器第零通道的边模振荡，大大提高了激光器的单纵模（SLM）振荡能力。进行数值模拟。所提出的结构保证主模和副模之间的归一化阈值增益裕度大于0.3。还观察到高边模抑制比。所提出的方法对于制造每个激光器都在 SLM 中运行的高性能宽带多波长激光阵列具有重要意义。
We propose a special asymmetric sampling structure based on reconstruction-equivalent-chirp technology to effectively suppress the side mode oscillation in the zeroth channel in a sampled Bragg grating semiconductor laser, which improves greatly the single-longitudinal mode (SLM) oscillation capability of the laser. A numerical simulation is performed. The proposed structure guarantees a normalized threshold gain margin between the main mode and the side mode larger than 0.3. A high side-mode suppression ratio is also observed. The proposed method would be of great importance for the fabrication of high-performance and wideband multiwavelength laser arrays with each laser operating in SLM.