Proton Radiation effects in medium/large area photodiodes and high power LED for Optical Wireless Links for intra Satellite communications (OWLS)

Abstract

LEDs and photodiodes (PDs) suitable for OWLS were irradiated with 52 MeV protons and up to 2.8ldr10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">12</sup> p/cm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> (in 5 steps). Electrical and optoelectronics parameters have been characterized during the test (characteristic I-V curve, dark current, PD responsivity and LED optical power) results about degradation and are reported. Also, the differences in degradation rate for several biasing conditions during irradiation have been studied.