Soraa announces improved green and blue lasersSoraa announces new semi-polar and non-polar green and blue lasers. The continuous-wave output of the company's 516 nm green lasers now exceeds 100 mW. Other characteristics of these packaged diodes included threshold currents and voltages of 125 mA and 5.9 V, a slope efficiency of 0.4 W/A and a wall-plug efficiency that peaks at 4.1 percent. Divergence along the fast axis is 14-22 degrees, and in the slow axis it is 10-14 degrees. The new blue lasers have similar levels of beam divergence. Packaged single-mode variants have a slope efficiency of more than 1.6 W/A, and the threshold current and voltage are 30 mA and 3.9V. When emitting 500 mW, wall plug efficiency is more than 20 percent and it hits 22 percent at 200 mW. Soraa estimates that the pico-projector market could reach 200 million units per year (they won't say by which year though).
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