Ultrafast gain dynamics in asymmetrical multiple quantum-well semiconductor optical amplifiers
| Autor: | V.V. Lysak, Hitoshi Kawaguchi, A.V. Shulika, Igor A. Sukhoivanov, Takeo Katayama |
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| Rok vydání: | 2005 |
| Předmět: |
Physics
Optical amplifier genetic structures business.industry technology industry and agriculture Physics::Optics equipment and supplies Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Condensed Matter Physics Atomic and Molecular Physics and Optics Optical pumping Wavelength Optics Semiconductor Optoelectronics sense organs Stimulated emission Electrical and Electronic Engineering business Ultrashort pulse Energy (signal processing) Quantum well |
| Zdroj: | IEEE Journal of Quantum Electronics. 41:797-807 |
| ISSN: | 0018-9197 |
| DOI: | 10.1109/jqe.2005.846694 |
| Popis: | A numerical model for the investigation of the ultrafast gain properties in asymmetrical multiple quantum-well semiconductor optical amplifiers has been developed considering propagation of ultrashort optical pulses with different wavelengths. The dynamics of the number of carriers and carrier temperature are investigated for each quantum well. The results agree with the experimental results of pump probe measurements with different wavelengths. It is shown that gain recovery is slower for higher energy wells for pump signals of all wavelengths. |
| Databáze: | OpenAIRE |
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