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Internal Device Physics of 1.3μm Vertical Cavity Surface Emitting Laser

機譯:1.3μm垂直腔面發射激光器的內部器件物理

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We report on the simulation of 1.32μm vertical-cavity surface-emitting lasers (VCSELs). The device comprises a tunnel junction for current and optical confinement and features intra-cavity ring contacts. Distributed Bragg reflectors (DBRs) in the GaAs/AlGaAs material system form the optical cavity and are wafer-bonded to InP-based spacers. The active region consists of five InAlGaAs quantum wells (QW). For the simulations, a thermodynamic transport model is used for electrical and thermal calculations while the optical modes are computed by solving the vectorial Helmholtz equation with an finite element (FE) solver. Calibrations show good agreement with measurements and on this basis, electrical benefits of the TJ are studied. Moreover, the physics of thermal rollover are analyzed.
機譯:我們報告了1.32μm垂直腔面發射激光器(VCSEL)的仿真。該器件包括用于電流和光學限制的隧道結,并具有腔內環形觸點。 GaAs / AlGaAs材料系統中的分布式布拉格反射器(DBR)形成光學腔,并通過晶圓鍵合到基于InP的墊片。有源區由五個InAlGaAs量子阱(QW)組成。對于仿真,將熱力學傳輸模型用于電和熱計算,而光學模式是通過使用有限元(FE)求解器求解矢量亥姆霍茲方程來計算的。校準與測量結果吻合良好,在此基礎上,研究了TJ的電氣效益。此外,分析了熱翻轉的物理原理。

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