New Design of Two-Dimensional Array of Laser Diodes With Direct Convective Cooling

The new approach to cool of Laser Diode Arrays (LDAs) is proposed. A coolant flows in regions between Laser Diode Bars (LDBs) in LDA and directly removes heat from these LDBs. The simulation demonstrated that the output optical power density of about 20 kW/cm(2) in LDA in continuous wave (CW) operation mode can be reached with the proposed approach of cooling. The turbulent flow of coolant has been studied, and the modeling showed that the turbulent regime, providing convective heat exchange in the device, leads to better cooling of the device with higher output characteristics.

Automated summary

A new approach for cooling Laser Diode Arrays (LDAs) is proposed in this study, where a coolant is used to remove heat directly from the Laser Diode Bars (LDBs) in the LDA. Simulation results demonstrate that this cooling method can achieve an output optical power density of about 20 kW/cm(2) in continuous wave operation mode, and maintaining a turbulent flow of the coolant can improve the cooling efficiency and output characteristics of the device.