Precise characterization of the frequency chirp in directly modulated DFB lasers

被引：29
|
作者：
Villafranca, Asier [1 ]
Lasobras, Javier [1 ]
Garces, Ignacio [1 ]
机构：
[1] Univ Zaragoza, TOYBA Lab 13A, PT Walqa,Ed 1, Cuarte 22197, Huesca, Spain
来源：
2007 SPANISH CONFERENCE ON ELECTRON DEVICES, PROCEEDINGS | 2007年
关键词：
laser measurements; optical spectroscopy; semiconductor lasers;
D O I：
10.1109/SCED.2007.384020
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：
We report on results from the characterization of the frequency chirp characteristics of distributed feedback (DFB) lasers under direct modulation conditions. Parameters describing transient and adiabatic chirp effects are measured for a DFB laser from the ratio of phase to amplitude modulation factors when modulated with sine waves using a high-resolution optical spectrum analyzer. Transient and adiabatic chirp effects produced under digital non-return to zero (NRZ) amplitude modulation are also analyzed using the emitted optical spectrum. Finally, results from the measurement technique are compared with those obtained from measured optical spectra.
引用
收藏
页码：173 / +
页数：2
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