Tilted Wave Laser diode emitters represent a promising approach for high power laser diodes. These devices, manufactured by VI Systems, are broad area devices that make use of an effective large vertical cavity to reduces the overall power density delaying the onset of thermal rollover and COD effects. A challenge of the TWL approach is a dual-beam emission, each single-mode in the vertical dimension. This paper addresses resent efforts to efficiently coherently beam combine these two beams into one single-mode beam having what is quite likely world class brightness, power, and conversion efficiency for a broad area diode array.
Robert H. Dueck, "Coherent beam combining within tilted wave laser diode emitters and arrays (Conference Presentation)," Proc. SPIE 10086, High-Power Diode Laser Technology XV, 100860T (Presented at SPIE LASE: January 31, 2017; Published: 26 May 2017); https://doi.org/10.1117/12.2253641.5387787318001.
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