Abstract
We consider a large-aspect-ratio vertical-cavity surface emitting laser (VCSEL) and show that the dependence of the reflection from distributed Bragg reflectors used in VCSELs on the incidence angle of a tilted wave leads to spatial Fourier mode selection and transverse pattern formation along with the known dispersion selection mechanism. Interplay between these two mechanisms can reinforce the process of mode selection. In this case not only the absolute value but also the direction of the transverse wavevector determines the excited modes. The choice depends also on the field polarization anisotropy of the device. In this case transverse standing waves appear near the laser threshold even in a system infinite in the transverse direction. Their direction is connected with the polarization direction.
Published Version
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