Lowering the lasing threshold of distributed feedback lasers with loss

被引：3
|
作者：
Shishkov, V. Yu [1 ,2 ]
Zyablovsky, A. A. [1 ,2 ]
Andrianov, E. S. [1 ,2 ]
Pukhov, A. A. [1 ,2 ,3 ]
Vinogradov, A. P. [1 ,2 ,3 ]
Dorofeenko, A. V. [1 ,2 ,3 ]
Lisyansky, A. A. [4 ,5 ]
机构：
[1] Moscow Inst Phys & Technol, Dolgoprudnyi 141700, Moscow Reg, Russia
[2] All Russia Res Inst Automat, Moscow 127055, Russia
[3] RAS, Inst Theoret & Appl Electromagnet, Moscow 125412, Russia
[4] CUNY Queens Coll, Dept Phys, Flushing, NY 11367 USA
[5] CUNY, Grad Ctr, New York, NY 10016 USA
来源：
PHYSICAL REVIEW B | 2015年 / 92卷 / 24期
关键词：
ARRAYS;
D O I：
10.1103/PhysRevB.92.245420
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We study laser generation in one-dimensional distributed feedback lasers with amplifying and lossy layers. We show that when the lasing frequency differs from the transition frequencies of the amplifying medium, loss induced lasing may occur due to the broadening of the resonator mode with increasing loss in the absorbing layers. This broadening leads to a shift in the lasing frequency towards the transition frequency. As a result, the cavity mode interaction with the amplifying medium is enhanced, and the lasing threshold is lowered.
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页数：6
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