1 April 2005 Near-field and far-field dynamics of (Al,In)GaN laser diodes
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For blue (Al,In)GaN laser diodes we measure the evolution of the laser beam during its propagation from near-field to far-field. We reconstruct the near-field phase distribution of the waveguide mode. The dynamic behaviour is a tilting of the phase front and a far-field beam-steering on a 10 ns to 100 ns time scale. These observations are discussed in the context of the carrier induced change of the refractive index associated with the antiguiding factor and of thermal dynamics.
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Ulrich T. Schwarz, Ulrich T. Schwarz, Markus Pindl, Markus Pindl, } "Near-field and far-field dynamics of (Al,In)GaN laser diodes", Proc. SPIE 5738, Novel In-Plane Semiconductor Lasers IV, (1 April 2005); doi: 10.1117/12.591044; https://doi.org/10.1117/12.591044

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