27 February 2017 The optically pumped semiconductor membrane external-cavity surface-emitting laser (MECSEL): a concept based on a diamond-sandwiched active region
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Abstract
Semiconductor disk lasers with all their advantages1 became an important stand-alone class of solid-state lasers during the last years. However, these systems suffer from heat incorporation into the active region caused by the excess energy of the pump photons. To overcome this limitation we realized the semiconductor membrane external-cavity surface-emitting laser as a diamond heat spreader sandwiched active region design. A detailed process description towards the MECSEL2 approach is given as well as fundamental performance values. Furthermore, parasitic lateral lasing effects are discovered and investigated. Nevertheless, the MECSEL approach indicates enormous potential to revolutionize the semiconductor based disk lasers regarding available output powers at room temperature and material combinations.
Conference Presentation
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Hermann Kahle, Hermann Kahle, Cherry May N. Mateo, Cherry May N. Mateo, Uwe Brauch, Uwe Brauch, Roman Bek, Roman Bek, Michael Jetter, Michael Jetter, Thomas Graf, Thomas Graf, Peter Michler, Peter Michler, } "The optically pumped semiconductor membrane external-cavity surface-emitting laser (MECSEL): a concept based on a diamond-sandwiched active region", Proc. SPIE 10087, Vertical External Cavity Surface Emitting Lasers (VECSELs) VII, 100870J (27 February 2017); doi: 10.1117/12.2252182; https://doi.org/10.1117/12.2252182
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