Sprecher
Axel Günther
(Institute of High Frequency Technologies, Braunschweig, Germany)
Beschreibung
We investigate the suitability of vertical-cavity surface-emitting lasers (VCSEL) as highly sensitive distance sensors for topography measurement. The concept relies on the light reflected from a moving sample into the VSCEL resonator inducing a measurable change of operating current and emission wavelength to detect motion of a few nm only.
Autoren
Axel Günther
(Institute of High Frequency Technologies, Braunschweig, Germany)
Divyaben Korat
(Hannover Centre for Optical Technologies, Hannover, Germany)
Wolfgang Kowalsky
(Institute of High Frequency Technologies, Braunschweig, Germany)
Bernhard Roth
(Hannover Centre for Optical Technologies, Hannover, Germany)
