Abstract

Visible, red emitting vertical cavity surface emitting lasers (VCSELs) [1] in the wavelength regime between 650 and 780 nm are very attractive light sources in low cost optical interconnects with on polymer optical fibers (POFs). We have fabricated GaAs-based 780 nm emission wavelength VCSELs using solid source MBE and p-type Carbon doping. Single layer 30 nm thick oxide apertures provide current and optical confinement. We employ 120 μm core diameter POF (Toray PGR-FB 125) because conventional POFs have core diameters between 0.25 and 3 mm making them impractical for high density optical interconnects with transmitter and receiver array pitch sizes of 250 μm or less [2].

© 1998 IEEE