On the high characteristic temperature of an InAs/GaAs/InGaAsP QD laser with an emission wavelength of ~1.5 μm on an InP substrate
- Authors: Zubov F.I.1, Semenova E.S.2, Kulkova I.V.2, Yvind K.2, Kryzhanovskaya N.V.1, Maximov M.V.1, Zhukov A.E.1
-
Affiliations:
- Russian Academy of Sciences
- DTU Fotonik, Department of Photonics Engineering
- Issue: Vol 51, No 10 (2017)
- Pages: 1332-1336
- Section: Semiconductor Structures, Low-Dimensional Systems, and Quantum Phenomena
- URL: https://journals.rcsi.science/1063-7826/article/view/201367
- DOI: https://doi.org/10.1134/S1063782617100207
- ID: 201367
Cite item
Abstract
We report on a study of lasers with an emission wavelength of about 1.5 μm and high temperature stability, synthesized on an InP (001) substrate. Self-organized InAs quantum dots capped with a thin GaAs layer are used as the active region of the laser. A quaternary InGaAsP solid solution with a band-gap width of 1.15 eV serves as the waveguide/matrix layer. A high characteristic temperature of the threshold current, T0 = 205 K, is reached in the temperature range 20–50°C in ridge-waveguide laser diodes. A correlation between the values of T0 and the band-gap width of the waveguide layers is found.
About the authors
F. I. Zubov
Russian Academy of Sciences
Author for correspondence.
Email: fedyazu@mail.ru
Russian Federation, St. Petersburg, 194021
E. S. Semenova
DTU Fotonik, Department of Photonics Engineering
Email: fedyazu@mail.ru
Denmark, Kgs. Lyngby, DK-2800
I. V. Kulkova
DTU Fotonik, Department of Photonics Engineering
Email: fedyazu@mail.ru
Denmark, Kgs. Lyngby, DK-2800
K. Yvind
DTU Fotonik, Department of Photonics Engineering
Email: fedyazu@mail.ru
Denmark, Kgs. Lyngby, DK-2800
N. V. Kryzhanovskaya
Russian Academy of Sciences
Email: fedyazu@mail.ru
Russian Federation, St. Petersburg, 194021
M. V. Maximov
Russian Academy of Sciences
Email: fedyazu@mail.ru
Russian Federation, St. Petersburg, 194021
A. E. Zhukov
Russian Academy of Sciences
Email: fedyazu@mail.ru
Russian Federation, St. Petersburg, 194021