An optical wireless local area network using line of sight optical links. The
base station and terminal stations are provided with optical transceivers which
include a transmitter array and detector array. The transmitter array consists
of an array of resonant cavity light emitting diodes integrated using flip-chip
technology with a CMOS driver circuit. The driver circuit includes constant bias,
current peaking and charge extraction. The driver circuitry is compact and can
be confined within a region underlying the corresponding light source. The detector
array consists of an array of photo diodes, provided with sense circuitry consisting
of a pre-amplifier and post-amplifier. The diodes and senses circuitry are also
integrated using a flig-chip technique. The light emitter and the detector may
include adaptive optical elements to steer and/or focus the light beams.