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Simulation of 1.3µm Quantum Dot laser by Using Four Levels Rate Equations Model | ||
| JOURNAL OF THI-QAR SCIENCE | ||
| Article 1, Volume 4, Issue 4, 2014, Pages 187-191 | ||
| Author | ||
| Hussein H. Warid | ||
| Abstract | ||
| By using four-level rate equations model (4LREM), the dynamics of optical gain and output power in 1.3µm quantum dots laser (QD-laser) is investigated. The numerical model of InAs/GaAs (QD-laser) covers four energy levels for electron. In present model, hole dynamics effect, both homogeneous and inhomogeneous broadening effects are ignored. Present results indicate to, a first and second lasing line, corresponding to the ground state, first excited state respectively appears at low bias current with injection current increasing. As a result, the use of the four -level model described above potentially gives a more complete insight into the dynamics of quantum-dot semiconductor lasers. This result very useful for the design of InAs/GaAs QD laser for communications applications. | ||
| Keywords | ||
| Quantum Dot Laser; Rate Equation Model | ||
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