A THEORETICAL-ANALYSIS OF LINEWIDTH BROADENING IN FREQUENCY TUNABLE DBR LASERS

被引：3
|
作者：
SUZUKI, A
机构：
[1] Optoelectronics Research Laboratories, NEC Corporation
来源：
IEEE JOURNAL OF QUANTUM ELECTRONICS | 1991年 / 27卷 / 09期
关键词：
D O I：
10.1109/3.135168
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Linewidth broadening in frequency tunable DBR lasers with tuning section is analyzed. The analysis is based on a simplified two-section single-mode cavity model and quantum mechanical Langevin treatment. The origin of linewidth broadening is shown to be low frequency excess FM noise caused by carrier fluctuation in the tunning section. A scaling law, which permits optimal device parameter design, is then derived. When a decrease in the carrier lifetime is combined with a increase in the tuning current, linewidth broadening can be suppressed without frequency tuning range reduction.
引用
收藏
页码：2109 / 2115
页数：7
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