Semiconductor Optical Amplifier Based on a Quantum Dot-in-a-Well (QDWELL) Structure Under Optical Pumping
| Autor: | Yosef Ben Ezra, Boris I. Lembrikov |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Optical amplifier
Physics business.industry Bandwidth (signal processing) Physics::Optics Computer Science::Software Engineering Condensed Matter Physics Atomic and Molecular Physics and Optics Optical pumping Optics Quantum dot laser Quantum dot Laser diode rate equations Chirp Optoelectronics Semiconductor optical gain Electrical and Electronic Engineering business |
| Zdroj: | IEEE Journal of Quantum Electronics. 50:340-347 |
| ISSN: | 1558-1713 0018-9197 |
| DOI: | 10.1109/jqe.2014.2308393 |
| Popis: | We investigated theoretically dynamics of a semiconductor optical amplifier (SOA) based on the quantum dot-in-a-well (QDWELL) structure. We modified the QDWELL laser rate equations for the case of SOA and solved the modified equation system numerically. We have shown that a strong pumping optical wave in the QDWELL SOA synchronizes the QD carrier dynamics, which results in the enhancement of the QDWELL SOA bandwidth and repetition frequency, fast gain recovery, cross-gain modulation, and chirp decrease. |
| Databáze: | OpenAIRE |
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