Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Saturated layer gain in waveguides with InGaAs quantum well-dot heterostructures. / Nadtochiy, Alexey M.; Gordeev, Nikita Yu; Kharchenko, Anton A.; Mintairov, Sergey A.; Kalyuzhnyy, Nikolay A.; Shernyakov, Yury M.; Maximov, Mikhail V.; Zhukov, Alexey E.; Berdnikov, Yury.
в: Journal of Lightwave Technology, Том 39, № 23, 01.12.2021, стр. 7479-7485.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Saturated layer gain in waveguides with InGaAs quantum well-dot heterostructures
AU - Nadtochiy, Alexey M.
AU - Gordeev, Nikita Yu
AU - Kharchenko, Anton A.
AU - Mintairov, Sergey A.
AU - Kalyuzhnyy, Nikolay A.
AU - Shernyakov, Yury M.
AU - Maximov, Mikhail V.
AU - Zhukov, Alexey E.
AU - Berdnikov, Yury
N1 - Publisher Copyright: IEEE
PY - 2021/12/1
Y1 - 2021/12/1
N2 - Modal absorptions in laser-like heterostructures containing InAs self-assembled quantum dots (QDs) and InGaAs quantum well-dots (QWDs) have been studied. The evaluation of photoresponse as a function of waveguide length has allowed us to determine per-layer modal absorptions of 69 and 13 cm-1 for the ground state optical transitions of QWDs and QDs, respectively. The values of the modal absorption can be used as a measure of the maximal (saturated) modal gain. To compare quantum heterostructures with different dimensionality we have introduced the layer gain constant, a parameter characterizing the light transmittance through the absorbing or gaining layer. We have shown that the QWD layer gain constant significantly exceeds quantum well and quantum dot ones.
AB - Modal absorptions in laser-like heterostructures containing InAs self-assembled quantum dots (QDs) and InGaAs quantum well-dots (QWDs) have been studied. The evaluation of photoresponse as a function of waveguide length has allowed us to determine per-layer modal absorptions of 69 and 13 cm-1 for the ground state optical transitions of QWDs and QDs, respectively. The values of the modal absorption can be used as a measure of the maximal (saturated) modal gain. To compare quantum heterostructures with different dimensionality we have introduced the layer gain constant, a parameter characterizing the light transmittance through the absorbing or gaining layer. We have shown that the QWD layer gain constant significantly exceeds quantum well and quantum dot ones.
KW - Absorption
KW - Gain measurement
KW - Gallium arsenide
KW - Heterostructures
KW - Optical saturation
KW - Optical waveguides
KW - Photoresponsivity
KW - Quantum dot lasers
KW - Quantum well-dots
KW - Semiconductor device measurement
KW - Semiconductor lasers
KW - Semiconductor nanostructures
KW - Semiconductor waveguides
KW - Waveguide lasers
KW - Waveguide photodetectors
KW - gain measurement
KW - waveguide photodetectors
KW - quantum well-dots
KW - semiconductor nanostructures
KW - photoresponsivity
KW - semiconductor lasers
KW - semiconductor waveguides
KW - heterostructures
KW - ABSORPTION
KW - EFFICIENCY
KW - LASERS
KW - MODAL GAIN
UR - http://www.scopus.com/inward/record.url?scp=85116942337&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/885d204b-36b0-346c-9cb2-075dbd494e7b/
U2 - 10.1109/jlt.2021.3116261
DO - 10.1109/jlt.2021.3116261
M3 - Article
AN - SCOPUS:85116942337
VL - 39
SP - 7479
EP - 7485
JO - Journal of Lightwave Technology
JF - Journal of Lightwave Technology
SN - 0733-8724
IS - 23
ER -
ID: 88772046