How to use negative feedback to regulate output power from a laser diode using a simple, single op-amp based circuit ...

Abstract: High-voltage vertical regrown p-n junction diodes on bulk GaN substrates are reported in this letter with molecular-beam-epitaxy regrown p-GaN on metalorganic-chemical-vapor-deposition grown ...

Abstract: We report on a diode-pumped Er:Yb laser able to generate a single-frequency output power in excess of 200 mW at both 1.53 μm and 1.56 μm and over 300 mW in multimode operation. The tuning ...

Prime Minister Mark Carney says it is "not smart" for Canada to be so reliant on the US for defence Canadian Prime Minister Mark Carney said he wants his country to join a major European plan to ...