Zobrazeno 1 - 10
of 65
pro vyhledávání: '"C. Gilfert"'
Autor:
Anna Rippien, Gadi Eisenstein, C. Gilfert, Carsten Bornholdt, Johann Peter Reithmaier, V. Ivanov, Florian Schnabel, D. Gready
Publikováno v:
IEEE Photonics Technology Letters. 26:11-13
We report static and dynamic characteristics of InAs/InP quantum dot (QD) lasers emitting near 1.55 μm. The gain section was optimized for a high speed operation using a unique spatially resolved model. The measured modulation capability dependence
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::69ed3bfe4e47c2f4fc16333dec0bab0e
https://doi.org/10.1109/lpt.2013.2287502
https://doi.org/10.1109/lpt.2013.2287502
Publikováno v:
Applied Physics B. 93:743-747
Using first principles, all-electron calculations and dynamical simulations we study the behavior of solid InSb immediately after intense femtosecond excitation. First, we determine the laser-excited potential energy surfaces with high accuracy for d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e5512e1e99f88aa598bbd9f161982a63
https://doi.org/10.1007/s00340-008-3294-x
https://doi.org/10.1007/s00340-008-3294-x
Publikováno v:
IEEE Photonics Technology Letters. 24:809-811
We present the static and dynamic properties of InAs quantum-dot (QD) lasers emitting near 1.55 μm. The used laser material comprises four QD layers and exhibits a high modal gain of about 40 cm-1. The 340-μ.m-long lasers show a room temperature th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3aac4441ff6a015a570764db94c24c46
https://doi.org/10.1109/lpt.2012.2188506
https://doi.org/10.1109/lpt.2012.2188506
Autor:
Grzegorz Sęk, Maciej Pieczarka, D. Biegańska, Marcin Syperek, Jan Misiewicz, Johann Peter Reithmaier, C. Gilfert, E. M. Pavelescu
Publikováno v:
Applied Physics Letters. 110:221104
The lateral carrier diffusion process is investigated in coupled InGaAs/GaAs quantum dot-quantum well (QD-QW) structures by means of spatially resolved photoluminescence spectroscopy at low temperature. Under non-resonant photo-excitation above the G
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8bd699e78534fd4864e67c4fc6492c8a
https://doi.org/10.1063/1.4984747
https://doi.org/10.1063/1.4984747
Autor:
Kamen Koshuharov, V. Ivanov, Gadi Eisenstein, Johann Peter Reithmaier, C. Gilfert, Kerstin Fuchs, Vitalii Sichkovskyi, Anna Rippien, D. Gready, Nina Felgen, Florian Schnabel
Publikováno v:
2013 IEEE Photonics Conference.
A review will be given on the latest development of 1.55 μm quantum dot lasers. Static and dynamic properties of short cavity ridge waveguide lasers will be presented exhibiting data rates up to 22 GBit/s. The impact of structural and operational pa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3cf69c9dab78f411cfd111e695917d58
https://doi.org/10.1109/ipcon.2013.6656521
https://doi.org/10.1109/ipcon.2013.6656521
Autor:
Galit Atiya, S. Kölling, Jan Misiewicz, Johann Peter Reithmaier, Amir Capua, Gadi Eisenstein, D. Gready, Ouri Karni, Wayne D. Kaplan, A. Maryński, G. Sęk, J. Andrzejewski, C. Gilfert, Anna Musiał
The optical and structural properties of a new kind of InAs/InGaAlAs/InP quantum dot (QD)-like objects grown by molecular beam epitaxy have been investigated. These nanostructures were found to have significantly more symmetrical shapes compared to t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dc24115dc53c0d01a18c31c0b683f7f4
https://publica.fraunhofer.de/handle/publica/235039
https://publica.fraunhofer.de/handle/publica/235039
Autor:
Gadi Eisenstein, Florian Schnabel, Carsten Bornholdt, Anna Rippien, C. Gilfert, V. Ivanov, D. Gready, Johann Peter Reithmaier
Publikováno v:
ISLC 2012 International Semiconductor Laser Conference.
We report on the static and dynamic characteristics of InAs/InGaAlAs/InP quantum dot lasers. The lasers exhibit a record model gain of > 70 cm−1 with 6 QD layers and reached with an optimized active region design a record digital modulation rate of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7096fe6bf74217f330835583e24ced90
https://doi.org/10.1109/islc.2012.6348317
https://doi.org/10.1109/islc.2012.6348317
Autor:
Grzegorz Sęk, E. M. Pavelescu, W. Rudno-Rudziński, Johann Peter Reithmaier, C. Gilfert, Marcin Syperek, Jan Misiewicz, J. Andrzejewski
Publikováno v:
Physical Review B. 85
In this paper, we present time-resolved photoluminescence of self-assembled (In,Ga)As quantum dots (QDs) coupled to an In${}_{x}$Ga${}_{1\ensuremath{-}x}$As quantum well (QW) through a thin GaAs barrier. The coupling strength is controlled by the wel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b1b165bc5b81689a3a64c8460f0b6f99
https://doi.org/10.1103/physrevb.85.125311
https://doi.org/10.1103/physrevb.85.125311
Autor:
Nicolas Michel, Martin Traub, C. Gilfert, Michel Krakowski, E. M. Pavelescu, Johann Peter Reithmaier, T. Westphalen
We have developed 920-nm pump modules for Yb-doped fiber amplifiers. The pump laser utilizes a single layer of In(AlGa)As/GaAs quantum-dot material as active region. Stable operation without thermoelectric cooling, output powers of up to 40 W, and wa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3e265fa2d9679d7d0db3a5224c5487e2
https://publica.fraunhofer.de/handle/publica/228561
https://publica.fraunhofer.de/handle/publica/228561
Publikováno v:
Conference on Lasers and Electro-Optics 2012.
We present room temperature characteristics of 340μm long 1.55μm quantum dot lasers. Due to the high modal gain of 10cm−1 per dot layer, CW ground state lasing and record modulation rates of 15Gbit/sec were demonstrated.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::106651605502704869ba86d5964156fa
https://doi.org/10.1364/cleo_si.2012.cm1i.3
https://doi.org/10.1364/cleo_si.2012.cm1i.3