Near-Field Spectroscopy of Selectively Oxidized Vertical Cavity Surface Emitting Lasers
Description:
Selectively oxidized vertical cavity surface emitting lasers (VCSELS) have been studied by spectrally resolved near field scanning optical microscopy (NSOM). We have obtained spatially and spectrally resolved images of both subthreshold emission and lasing emission from a selectively oxidized VCSEL operating at a wavelength of 850 nm. Below threshold, highly local high gain regions, emitting local intensity maxima within the active area, were observed; these were found to serve as lasing center…
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Date:
December 9, 1999
Creator:
Kim, J.; Boyd, J. T.; Jackson, Howard E. & Choquette, Kent D.
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