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D.A. Livshits

Researcher at Ioffe Institute

Publications -  93
Citations -  2102

D.A. Livshits is an academic researcher from Ioffe Institute. The author has contributed to research in topics: Quantum dot laser & Laser. The author has an hindex of 22, co-authored 93 publications receiving 2017 citations.

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High-power picosecond and femtosecond pulse generation from a two-section mode-locked quantum-dot laser

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.
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High power temperature-insensitive 1.3 µm InAs/InGaAs/GaAs quantum dot lasers

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.
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InAs/InGaAs/GaAs quantum dot lasers of 1.3 [micro sign]m range with high (88%) differential efficiency

TL;DR: In this article, multiple layers (up to 10) of InAs/InGaAs/GaAs quantum dots were used to enhance the optical gain of quantum dot laser emitting around 1.3 µm.
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Continuous-wave operation of long-wavelength quantum-dot diode laser on a GaAs substrate

TL;DR: In this article, a diode laser based on self-organized quantum dots (QD's) on a GaAs substrate is demonstrated, where multiple stacking of InAs QD planes covered by thin InGaAs layers allows to prevent gain saturation and achieve long-wavelength lasing with low threshold current density (90-105 A/cm/sup 2/) and high output power (2.7 W) at 17/spl deg/C heatsink temperature.
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Quantum dot laser with 75 nm broad spectrum of emission.

TL;DR: A significant overlap and approximate equalization of the ground-state and the excited-state emission bands in the laser's spectrum is achieved by means of intentional inhomogeneous broadening of the quantum dot energy levels.