We present Single Event Upset (SEU) testing of a parallel fiber optic transceiver designed for communicating data
using commercial Fibre Channel and GbE protocols at data rates up to 2.5 Gbps per channel (on eight parallel
channels). This transceiver was developed for aircraft applications, such as the Joint Strike Fighter (JSF), Raptor and
F/A-18 aircraft, that deploy fiber optic networks using multi-mode fiber operating at 850 nm wavelength. However,
this transceiver may also have applications in space environments. This paper describes the underlying
transceiver component technology, which utilizes complementary metal-oxide semiconductor (CMOS) silicon-onsapphire
circuitry and GaAs VCSEL and PIN devices. We also present results of SEU testing of this transceiver
using heavy ions at Brookhaven National Labs.