Analysis of distributed feedback lasers using optical low-coherence reflectometry

被引:10
|
作者
Wiedmann, U [1 ]
Gallion, P [1 ]
Jaouen, Y [1 ]
Chabran, C [1 ]
机构
[1] Ecole Natl Super Telecommun, Dept Commun, CNRS, URA 820, F-75634 Paris 13, France
关键词
distributed feedback laser; low-coherence reflectometry; optical interferometry;
D O I
10.1109/50.669020
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
The analysis of distributed feedback (DFB) lasers by optical low-coherence reflectometry (OLCR) shows the appearance of additional more or less periodic minima in the reflectogram. These do not reflect local minima of the reflectance, but are rather due to multipath interference effects caused by spectral filtering of the white light source by the laser under test. It is shown that the coupling coefficient of the laser can be determined from the period of these minima.
引用
收藏
页码:864 / 869
页数:6
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