Open AccessAnalysis of the lasing characteristics of InGaAs/GaAs WGM microlasers
Author(s) -
Kryzhanovskaya Natalia,
Moiseev Eduard,
Egorov Alexey,
V Maksimov Mikhail
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1695/1/012096
Subject(s) - lasing threshold , materials science , optoelectronics , current (fluid) , ring (chemistry) , laser , optics , physics , chemistry , wavelength , organic chemistry , thermodynamics
We present an analysis of spectral and threshold characteristics of InGaAs/GaAs quantum well-dot microdisk laser operated under cw current injection at room temperature without external cooling. The experimental values of the threshold current for the disk and ring microlasers are compared. We observe that the threshold current can be significantly decreased in devices with large diameters (more than 30 μm) by using the ring geometry.