Coherent polarization stabilization in large-aperture rectangular post bottom-emitting vertical-cavity surface-emitting lasers

► The polarization states of output light were stabilized in the horizontal and vertical directions. ► Horizontal polarization was the most principal polarization which was parallel to the longer side of the rectangular aperture. ► Both horizontal polarization and vertical polarization demonstrated coherent stabilization over the entire range of operation current. ► Coherent spectrum blue-shift of horizontal polarization light occurred with respect to vertical polarization light at three different injected currents.