Abstract

In this paper, we design a high power and small volume laser source module using the laser diode array for the laser projector system. This module can efficiently suppress speckle noise by reducing the phase coherence using laser diode array. In addition, we use the rotating diffuser to further disturb the coherence of the lasers for lower speckle noise. The experimental results show that the laser source module and the rotating diffuser can effectively eliminate the speckle noise. This new light module with laser diode array can be used in the laser projection system with high brightness, small volume and low speckle noise.

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