The hypothesis of the moving comb in frequency shifted feedback lasers

被引:15
|
作者
de Chatellus, H. Guillet [1 ]
Lacot, E. [1 ]
Glastre, W. [1 ]
Jacquin, O. [1 ]
Hugon, O. [1 ]
机构
[1] Univ Grenoble 1, CNRS, Lab Interdisciplinaire Phys, UMR 5588, F-38041 Grenoble, France
关键词
Frequency shifted feedback laser; Laser coherence; Time-frequency spectrum; Gauss sums; Talbot effect; PULSE GENERATION; OUTPUT;
D O I
10.1016/j.optcom.2011.06.042
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The use of frequency-shifted feedback (FSF) lasers in optical metrology is based on a unique coherence property: the appearance of beats in the noise spectrum at the output of a two-beam interferometer, whose frequencies vary linearly with the path delay of the interferometer. A description of the output of a FSF laser as a moving comb of optical frequencies is generally admitted to explain these specific coherence properties. Here starting from the model of a passive FSF cavity seeded by spontaneous emission we give a rigorous description of the time-spectrum properties of FSF lasers and show that the moving comb exists only in the limit of small frequency shift. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码:4965 / 4970
页数:6
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