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A. R. Kovsh
Researcher at Russian Academy of Sciences
Publications - 18
Citations - 2340
A. R. Kovsh is an academic researcher from Russian Academy of Sciences. The author has contributed to research in topics: Quantum dot & Quantum dot laser. The author has an hindex of 17, co-authored 18 publications receiving 2281 citations.
Papers
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Journal ArticleDOI
InAs/InGaAs quantum dot structures on GaAs substrates emitting at 1.3 μm
Victor M. Ustinov,Nikolay A. Maleev,A. E. Zhukov,A. R. Kovsh,A. Yu. Egorov,A. V. Lunev,B. V. Volovik,Igor Krestnikov,Yu. G. Musikhin,N. A. Bert,P. S. Kop’ev,Zh. I. Alferov,Nikolai N. Ledentsov,Dieter Bimberg +13 more
TL;DR: In this article, the lateral size of InAs islands has been found to be approximately 1.5 times larger as compared to the InAs/GaAs case, whereas the island heights and surface densities were close in both cases.
Journal ArticleDOI
Quantum dot lasers: breakthrough in optoelectronics
Dieter Bimberg,Marius Grundmann,Frank Heinrichsdorff,Nikolai N. Ledentsov,Victor M. Ustinov,A. E. Zhukov,A. R. Kovsh,Mikhail V. Maximov,Y.M. Shernyakov,B. V. Volovik,A. F. Tsatsul’nikov,P. S. Kop’ev,Zh. I. Alferov +12 more
TL;DR: In this article, the authors used the concept of electronically-coupled quantum dots (QDs) and oxide-defined 10 μm apertures for surface-emitting QD lasers (300 K).
Journal ArticleDOI
Tuning quantum dot properties by activated phase separation of an InGa(Al)As alloy grown on InAs stressors
Mikhail V. Maximov,A. F. Tsatsul’nikov,B. V. Volovik,D. S. Sizov,Yu. M. Shernyakov,I.N. Kaiander,A. E. Zhukov,A. R. Kovsh,S. S. Mikhrin,Victor M. Ustinov,Zh. I. Alferov,R. Heitz,Vitaly Shchukin,Nikolai N. Ledentsov,Dieter Bimberg,Yu. G. Musikhin,Wolfgang Neumann +16 more
TL;DR: In this article, a model of self-organized quantum dots overgrown with an InGa(Al)As alloy layer is investigated as a means to control the structural and electronic properties.
Journal ArticleDOI
High-power picosecond and femtosecond pulse generation from a two-section mode-locked quantum-dot laser
Edik U. Rafailov,Maria Ana Cataluna,W. Sibbett,N. D. Il’inskaya,Yu. M. Zadiranov,A. E. Zhukov,Victor M. Ustinov,D.A. Livshits,A. R. Kovsh,Nikolai N. Ledentsov +9 more
TL;DR: In this paper, a two-section quantum-dot laser that produces output powers up to 45 mW at 1260 nm was demonstrated. The pulse duration could be varied from 2 ps to as short as 400 fs at the 21 GHz pulse repetition rate.
Journal ArticleDOI
High power temperature-insensitive 1.3 µm InAs/InGaAs/GaAs quantum dot lasers
S. S. Mikhrin,A. R. Kovsh,Igor Krestnikov,A. V. Kozhukhov,D.A. Livshits,N. N. Ledentsov,Yu. M. Shernyakov,Innokenty I. Novikov,Mikhail V. Maximov,V. M. Ustinov,Zh. I. Alferov +10 more
TL;DR: In this paper, GaAs-based broad area (100 µm) 1.3 µm quantum dot (QD) laser with high CW output power (5 W) and wall-plug efficiency (56%) was demonstrated.