Photon Counting Detectors for Orbiting Space Debris Tracking at Wavelength of 1064 nm

Le résumé fourni par la source

This master thesis focuses on the single photon counting device SSA detector based on SAP500 and InGaAs/InP SPAD. The design and construction enables the use for optical tracking of orbiting space debris. The detector is capable of monitoring the strength of solar radiation diusely reected by the space debris (operating in continuous working mode) and to utilize the option of laser ranging of orbiting space debris (operating in gated mode). The goal is to test and optimize SSA detector based on InGaAs/InP detection chip as a contribution to the ESA activity "Space Situational Awareness program P2-SST-VII Expert Coordination Centre; Phase II". The photon counting probability of the detector embodies saturation for biases higher than 5 V above its breakdown voltage. The timing resolution for a bias of 10 V above the breakdown voltage is typically 30 ps root mean square (RMS), which corresponds to a single shot range resolution better than 5 mm. The overall system precision expressed in a form of TDEV is better than 0.3 ps for averaging times of 700 s. The results of SAP500 experiments were presented at ILRS workshop in Canberra and SPIE Optics+Optoelectronics in Prague, the results of InGaAs/InP experiments were presented at ILRS workshop in Stuttgart and in Journal of the Review of Scientic Instruments.

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