Compact Green Light Sources for Micro Projector: Current Status and Prospect

摘要

Red, green and blue laser sources are attracting considerable interest to enable ultra-small, embedded laser scanning projection devices. Green lasers turned-out to be on the critical issue for the technical and commercial success of laser displays. Because all current approaching methods are based on frequency doubling, the green source is the major contributor of cost, size and power consumption. We discuss recent progress on the development of green laser in key parameters such as frequency doubling methods, size, output power, beam quality, and modulation bandwidth.