Switching between the mode-locking and Q-switching modes in two-section QW lasers upon a change in the absorber properties due to the Stark effect
- Autores: Gadzhiyev I.1,2, Buyalo M.1,2, Gubenko A.3, Egorov A.1,2,4, Usikova A.1, Il’inskaya N.1, Lyutetskiy A.1, Zadiranov Y.1, Portnoi E.1
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Afiliações:
- Ioffe Physical–Technical Institute
- St. Petersburg National Research University of Information Technologies, Mechanics, and Optics
- Innolume GmbH
- Connector Optics OOO
- Edição: Volume 50, Nº 6 (2016)
- Páginas: 828-831
- Seção: Physics of Semiconductor Devices
- URL: https://journals.rcsi.science/1063-7826/article/view/197310
- DOI: https://doi.org/10.1134/S1063782616060051
- ID: 197310
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Resumo
The passive Q-switching and mode-locking modes are implemented in two-section lasers with three quantum wells. It is demonstrated that raising the reverse bias on the absorbing section changes its spectral and dynamic properties and, accordingly, leads to a change from the Q-switching mode to mode-locking. The pulse-repetition frequency in the mode-locking mode is 75 GHz, with the product of the pulse duration by the spectrum bandwidth being 0.49, which is close to the theoretical limit. It is shown that, in structures with three quantum wells, strong absorption at the lasing wavelength gives rise to a photocurrent across a section of the saturable absorber, which is sufficient for compensation of the applied bias.
Sobre autores
I. Gadzhiyev
Ioffe Physical–Technical Institute; St. Petersburg National Research University of Information Technologies, Mechanics, and Optics
Autor responsável pela correspondência
Email: idris.intop@mail.ru
Rússia, St. Petersburg, 194021; St. Petersburg, 197101
M. Buyalo
Ioffe Physical–Technical Institute; St. Petersburg National Research University of Information Technologies, Mechanics, and Optics
Email: idris.intop@mail.ru
Rússia, St. Petersburg, 194021; St. Petersburg, 197101
A. Gubenko
Innolume GmbH
Email: idris.intop@mail.ru
Alemanha, Dortmund, 44263
A. Egorov
Ioffe Physical–Technical Institute; St. Petersburg National Research University of Information Technologies, Mechanics, and Optics; Connector Optics OOO
Email: idris.intop@mail.ru
Rússia, St. Petersburg, 194021; St. Petersburg, 197101; St. Petersburg, 194292
A. Usikova
Ioffe Physical–Technical Institute
Email: idris.intop@mail.ru
Rússia, St. Petersburg, 194021
N. Il’inskaya
Ioffe Physical–Technical Institute
Email: idris.intop@mail.ru
Rússia, St. Petersburg, 194021
A. Lyutetskiy
Ioffe Physical–Technical Institute
Email: idris.intop@mail.ru
Rússia, St. Petersburg, 194021
Yu. Zadiranov
Ioffe Physical–Technical Institute
Email: idris.intop@mail.ru
Rússia, St. Petersburg, 194021
E. Portnoi
Ioffe Physical–Technical Institute
Email: idris.intop@mail.ru
Rússia, St. Petersburg, 194021