研究目的
To present a hybrid method for electromagnetic (EM) modelling of coherent radiation in semiconductor lasers, combining drift diffusion (DD) model and electromagnetic simulation.
研究成果
The novel method presented enables the calculation of insensitivity of generated electromagnetic field and observation of dynamics of difference between population densities. The methodology is planned to be extended for two-dimensional simulations.
研究不足
The study is limited to a 1D structure, and the methodology is yet to be extended for two-dimensional simulations.
1：Experimental Design and Method Selection:
The study employs a hybrid method combining drift diffusion (DD) model and electromagnetic simulation for modelling coherent radiation in semiconductor lasers. A four-level two-electron atomic system with Pauli Exclusion Principle (PEP) extended by electric pumping ratio is used as the lasing model.
2：Sample Selection and Data Sources:
The study uses a PN junction consisting of 0.5μm n-type Al0.25Ga0.75As and 0.5μm p-type GaAs blocks with refractive index n = 3.6 for calculations.
3：5μm n-type Al25Ga75As and 5μm p-type GaAs blocks with refractive index n = 6 for calculations.
List of Experimental Equipment and Materials:
3. List of Experimental Equipment and Materials: The method involves computational tools for drift diffusion simulation and electromagnetic simulation, specifically the finite-difference time-domain (FDTD) method with auxiliary differential equation (ADE).
4：Experimental Procedures and Operational Workflow:
The process begins with device simulation using the drift diffusion method, followed by co-processing to recalculate results for electromagnetic simulation. The electromagnetic simulation is then performed to analyze the generated radiation.
5：Data Analysis Methods:
The analysis includes computing IV-characteristics, quasi-chemical potentials, gain characteristics, and spectral characteristics of the radiation.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
