Inorganic and polymer photonic sensor technologies in space missions

Abstract

Several state-of-the-art key photonic components such as optical fiber Bragg gratings and electro optic modulators that may be used in sensor systems are examined for their interaction and performance in space radiation environments. The exposure of photonic devices to ionizing environments can result in complex matter-light-ionizing radiation response-interactions that may ultimately cause degradation or failure of sensor systems. Several recently investigated polymer materials and devices show an increased resistance to radiation, while others do not. A brief comparison of leading inorganic and polymer technologies and their respective resistance to ionizing radiation is presented.