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千瓦级连续激光二极管面阵由30个40W的808nm连续激光二极管条组成,按要求排列成5×6矩阵,发光孔径12mm×70mm。每个激光二极管条安装在微沟道冷却封装组件上,依靠高压冷却水通过微沟道维持连续运行。面阵的30个二极管条的电路串联,冷却水道并联,恒流电流50A时,发射连续1060W,808nm波长的激光,平均功率密度126W/cm2。5个K型热电偶安装在面阵不同位置测量激光二极管底部附近硅热沉的温度随耗散热功率的增加,面阵整体热阻的测量值为0.009℃/W。千瓦级连续面阵可用于抽运大功率固体激光器,也可用于材料表面热处理。
Kilowatt continuous laser diode array consists of 30 40W 808nm continuous laser diode bars, arranged in a 5 × 6 matrix, the light-emitting aperture of 12mm × 70mm. Each laser diode strip is mounted on a microchannel cooling package and maintained in continuous operation through microchannels by high pressure cooling water. A total of 30 diodes in the array are connected in series and the cooling water channels are connected in parallel. When the constant current is 50A, continuous 1060W and 808nm laser beams are emitted with an average power density of 126W / cm2. K type thermocouples are installed in different positions of the array The temperature of the silicon heat sink near the bottom of the laser diode increases with the dissipated heating power and the overall thermal resistance of the area array is measured at 0.009 ° C / W. Kilowatt continuous surface array can be used for pumping high-power solid-state lasers, can also be used for material surface heat treatment.