Monostatic FMCW LiDAR sensing in C-band using an integrated InP optical phased array

Marco Gagino; Gilles Feugnet; Patrick Feneyrou; B. S. Vikram; Alonso Millan-Mejia; Erwin Bente; Victor Dolores-Calzadilla

doi:10.1117/12.3016919

18 June 2024 Monostatic FMCW LiDAR sensing in C-band using an integrated InP optical phased array

Marco Gagino, Gilles Feugnet, Patrick Feneyrou, B. S. Vikram, Alonso Millan-Mejia, Erwin Bente, Victor Dolores-Calzadilla

Author Affiliations +

Proceedings Volume 13012, Integrated Photonics Platforms III; 130120L (2024) https://doi.org/10.1117/12.3016919
Event: SPIE Photonics Europe, 2024, Strasbourg, France

Abstract

We demonstrate a monostatic LiDAR based on an InP photonic integrated optical phased array (OPA). The system utilizes an OPA with on-chip amplification which transmits and receives light simultaneously through an array of eight end-fire waveguide antennas. The OPA is capable of a 4.6° angular resolution and a 41° field of view. The on-chip amplifiers provide up to 21.5dB gain in a 1465-1600nm wavelength range. We show proof-of-principle FMCW (frequency modulated continuous wave) sensing through the monostatic OPA. The system relies on the frequency modulation with up to 10GHz frequency excursion of an external optically isolated DFB laser, which allows the simultaneous detection of range and velocity. The measurements were performed with a reflective target located ~2m away from the OPA, by varying the target position and velocity of 30 cm and ±5cm/s respectively. To the best of our knowledge, we demonstrated the first monostatic FMCW LiDAR implementation on an integrated InP OPA.

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Marco Gagino, Gilles Feugnet, Patrick Feneyrou, B. S. Vikram, Alonso Millan-Mejia, Erwin Bente, and Victor Dolores-Calzadilla "Monostatic FMCW LiDAR sensing in C-band using an integrated InP optical phased array", Proc. SPIE 13012, Integrated Photonics Platforms III, 130120L (18 June 2024); https://doi.org/10.1117/12.3016919

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