Fundamental investigations of modulated microchip laser arrays (MLAR) with frequency doubling

Summary form only given. This laser-array project with frequency doubling is attractive because of the possibility of modulating each element of the array separately. Complicated scan optics are no longer needed, and the small array takes up space. The working speed is significantly accelerated through the use of 24 emitters simultaneously. The goals of the project are a fundamental investigation of the interactions of closed-spaced microchip elements, a search for limits of miniaturization, testing of different concepts, an investigation of beam characteristics, and modulation. A special 15-W laser-diode array with 24 emitters, a period of 400 /spl mu/m, and width 200 /spl mu/m was designed.