High-brightness laser diodes using angular filtering by total reflection

Joseph Rogg; Konstantin Boucke; Marc T. Kelemen; Franz Rinner; Wilfried Pletschen; Rudolf Kiefer; Martin Walther; Michael Mikulla; Reinhart Poprawe; Guenter Weimann

doi:10.1117/12.429801

6 June 2001 High-brightness laser diodes using angular filtering by total reflection

Joseph Rogg, Konstantin Boucke, Marc T. Kelemen, Franz Rinner, Wilfried Pletschen, Rudolf Kiefer, Martin Walther, Michael Mikulla, Reinhart Poprawe, Guenter Weimann

Author Affiliations +

Proceedings Volume 4287, In-Plane Semiconductor Lasers V; (2001) https://doi.org/10.1117/12.429801
Event: Symposium on Integrated Optics, 2001, San Jose, CA, United States

Abstract

A high power semiconductor laser with a novel lateral design using angular filtering by total reflection for increased brightness is demonstrated. In this so called `Z-Laser' two inner surfaces guide the laser beam by total reflection in a Z-shaped path through the laser. Higher order laser modes with larger divergence angles are suppressed because of a smaller reflectivity. This results in a reduced far-field angle. Simulations based on a 2D steady state wave equation solved by using the Pade approximation, an 1D carrier diffusion equation and a logarithmic gain model have been performed to design the device.

Citation Download Citation

Joseph Rogg, Konstantin Boucke, Marc T. Kelemen, Franz Rinner, Wilfried Pletschen, Rudolf Kiefer, Martin Walther, Michael Mikulla, Reinhart Poprawe, and Guenter Weimann "High-brightness laser diodes using angular filtering by total reflection", Proc. SPIE 4287, In-Plane Semiconductor Lasers V, (6 June 2001); https://doi.org/10.1117/12.429801

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