Beam propagation in an active planar waveguide with an angled bragg grating (α laser)
Published in:
J. Mod. Opt., vol. 45, no. 7, pp. 1537-1546 (1998).
Abstract:
In the angled Bragg grating semiconductor laser (α laser), light does not propagate at a right angle with respect to the two-dimensional corrugated grating of the planar waveguide. A closed-form solution of the coupled-wave theory is used to describe the propagation of both the wave fields with different directions. A constant gain is included. Some properties of the main wave and of the secondary wave are described, which are of interest for the α laser. Additional losses occur during facet reflection of the secondary wave.
Ferdinand-Braun Institut für Höchstfrequenztechnik, Department of Optoelectronics, Rudower Chaussee 5, D-12489, Berlin, Germany
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