High-brightness, fiber-coupled diode laser development at Coherent

In this work, we present the development of a suite of high brightness, fiber-coupled diode lasers at Coherent Direct Diode Systems. Experimental results of high coupling efficiency into 50-200 μm, 0.2 numerical aperture (NA) fibers will be presented. In addition to the high-brightness laser diode bar with single mode emitters, various configurations of diode laser bars with multimode, broad area emitters will be utilized to achieve similar level of brightness. The enabling technology in these products is supported by key developments in micro and macro optics, diode laser packaging, and system architecture.