| 电负反馈半导体激光器中网络截止频率的影响及改进方案 |
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| 引用本文： | 张建平,李玲,叶培大. 电负反馈半导体激光器中网络截止频率的影响及改进方案[J]. 光学学报, 1989, 9(10): 875-879 |
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| 作者姓名： | 张建平 李玲 叶培大 |
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| 作者单位： | 北京邮电学院无线电工程系(张建平，李玲)，北京邮电学院无线电工程系(叶培大) |
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| 基金项目： | 国家自然科学基金资助的项目 |
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| 摘 要： | 计算机模拟表明半导体激光器非理想调频响应对反馈网络低频截止频率f_c的限制,阻碍提高线宽压窄率.半经典理论分析表明,用双电极非均匀线宽展览因子半导体激光器不仅能压窄谱线而且可以取消对f_c的限制,大大提高线宽压窄率.本文提出了电负反馈半导体激光器的改进方案.
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| 关 键 词： | 半导体激光器 光通信 应用光学 |
| 收稿时间： | 1989-01-16 |
Effect of cutoff frequency and proposals for improvement in nagetive electrical feedback semiconductor laser |
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| ZHANG JIANPING,LI LING AND YE PEIDA. Effect of cutoff frequency and proposals for improvement in nagetive electrical feedback semiconductor laser[J]. Acta Optica Sinica, 1989, 9(10): 875-879 |
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| Authors: | ZHANG JIANPING LI LING AND YE PEIDA |
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| Affiliation: | Department of Radio Engineering Beijing University of Posts & Telecommunications |
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| Abstract: | Computer simulation shows that the rate of linewidth narrowing is limited by the low cutoff frequency (fc) of feedback loop, because of the FM response of usuall semiconductor laser. Somiclagsical theory analysis shows that not only the narrowed linewidth output can be obtained, but also the limits to fc can be canceled by using two-electrode imhomogenous linewidth enhancement factor semiconductor laser. In this paper we present proposals for improvement. |
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| Keywords: | semiconductor laser optical communication applied optics. |
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