Gemmato, ValentinaValentinaGemmatoCamponeschi, FedericoFedericoCamponeschiScotti, FilippoFilippoScottiRinaldi, LucaLucaRinaldiPorzi, ClaudioClaudioPorziReza, ManuelManuelRezaGhelfi, PaoloPaoloGhelfiBogoni, AntonellaAntonellaBogoniScaffardi, MircoMircoScaffardi2026-03-192026-03-192025979-8-3315-9778-82162-7339https://imec-publications.be/handle/20.500.12860/58861A LiDAR system is developed on a hybrid photonic integrated circuit (PIC) to measure distance of a target exploiting coherent detection. The key advancement is the heterogeneous integration of a semiconductor optical amplifier (SOA) fabricated in Indium Phosphide (InP) technology into a silicon-on-insulator (SOI) PIC using microtransfer printing, with the aim of enhancing performance and compactness with respect to bulk implementation. The system undergoes comprehensive laboratory testing in free-space and back-to-back configurations, evaluating the accuracy of the distance measurements. The results demonstrate the effectiveness of the proposed heterogeneous integration approach.engProceedings paper10.1109/icton67126.2025.11125352WOS:001572094700310RADAR