Prediction of TEC power consumption for cooled laser diode module

In this study, the power consumption of TEC (thermoelectric cooler) is predicted using 3-D thermal FEM simulation and compared with experimental result. In addition to that, the effect of TEC configuration defined with the dimension and the number of pellets is discussed using commercialized product (RMT 1ML06-035-09AN) and its database to investigate the size effect. Results show that the cooling capacity of the TEC increases with increasing TEC pellet number. The power consumption of the module which the LD chip operates at 40 °C dramatically decreases with power consumption equal to 1/3 of the laser diode module operating at 25 °C.