Sarzała Robert P, Dąbrówka Dominika, Dems Maciej
Institute of Physics, Lodz University of Technology, ul. Wólczańska 217/221, 90-003 Łódź, Poland.
Materials (Basel). 2024 Dec 30;18(1):107. doi: 10.3390/ma18010107.
This paper presents a novel approach to address the issue of uneven temperature distribution in one-dimensional laser arrays, specifically in gallium nitride edge-emitting lasers emitting green light of 540 nm. The results were obtained using heat flow numerical analysis, which included an optimization method specifically developed for this type of array. It was demonstrated that thermal optimization of a one-dimensional edge-emitting laser array can be achieved by adjusting the placement of the emitters within the array and the size of the top gold contact, without changing the overall dimensions of the device. The proposed design alterations ensure an even temperature distribution across the array without the need for a complex and expensive cooling systems. The proposed optimization method can be applied to arrays made from various material systems, including nitrides, arsenides, and phosphides.
本文提出了一种新颖的方法来解决一维激光阵列中温度分布不均匀的问题，特别是在发射540nm绿光的氮化镓边缘发射激光器中。结果是通过热流数值分析获得的，其中包括专门为此类阵列开发的优化方法。结果表明，通过调整阵列中发射器的位置和顶部金接触的尺寸，而不改变器件的整体尺寸，就可以实现一维边缘发射激光阵列的热优化。所提出的设计变更确保了整个阵列的温度分布均匀，而无需复杂且昂贵的冷却系统。所提出的优化方法可应用于由各种材料系统制成的阵列，包括氮化物、砷化物和磷化物。
