Experimental setup for polarization switching experiments
The VCSEL is mounted on a copper-support. The temperature is regulated by
a Peltier element and a feedback system. The polarization direction to
be analyzed is selected by a Fresnel-rhomb and a Wollaston-prism. The
spectrum of the laser light is measured by a scanning
Fabry-Perot-interferometer and a monochromator. The nearfield is
analyzed by a CCD-camera. A second camera and a holographic grating allow
frequency selective measurements of the nearfield components, for
example higher transversal modes.
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