Electroluminescence properties of a whispering-gallery-mode laser with coupled disk cavities

被引：0
|
作者：
A. N. Imenkov
E. A. Grebenshchikova
V. V. Sherstnev
A. A. Leonidov
N. D. Il’inskaya
O. Yu. Serebrennikova
R. Teissier
A. N. Baranov
Yu. P. Yakovlev
机构：
[1] Russian Academy of Sciences,Ioffe Physical
[2] Universite Montpellier 2,Technical Institute
[3] CNRS,Institut d’Electronique du Sud (IES)
[4] IES (UMR CNRS 5214),undefined
来源：
Semiconductors | 2014年 / 48卷
关键词：
GaSb; Spatial Mode; Laser Emission; Whisper Gallery Mode; Couple Cavity;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Whispering-gallery-mode (WGM) lasers (emission wavelength λ = 2.1–2.4 μm) with coupled disk cavities connected by a bridge are developed on the basis of a GaInAsSb/GaAlAsSb quantum-well nano-heterostructure and their emission spectra and optical far-field patterns are studied. Almost single-mode lasing in one spatial mode is observed in a wide range of supply currents. The emission wavelength grows with increasing current due to heating of the laser, and this phenomenon can be used in diode-laser spectroscopy. An assumption is made that the flux of generated emission can pass in lasers of this kind from one cavity to the other and back along the cavity-connecting bridge. It is found that strong narrowing of the laser emission pattern occurs with increasing current near the plane separating the coupled cavities.
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页码：1399 / 1403
页数：4
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