Abstract
Vertical-cavity surface-emitting lasers (VCSELs) have recently become available commercially, finding many uses in data communication systems (with an emission wavelength near 850 nm), printers (in the visible region), compact disk players (near 780 nm) and many other systems. VCSELs may also find many applications in data communication and telecommunication systems (at 1.3 μm and 1.55 μm); however, they are not yet available commercially in this wavelength range. These wavelengths are of great interest for the transmission of information over fibers. Longer distances and higher speeds dictate the move toward these wavelengths, which correspond to the minimum dispersion and minimum loss in standard glass fiber at 1.3 and 1.55 μm, respectively.
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