2026-06-01T08:31:36Zhttps://riuma.uma.es/rest/oai/request

oai:riuma.uma.es:10630/251322026-02-03T12:17:25Zcom_10630_2254col_10630_37959

00925njm 22002777a 4500 dc Torres-Cubillo, Antonia author Wanguemert-Pérez, Juan Gonzalo author Sánchez-Postigo, Alejandro author Molina-Fernández, Íñigo author Halir, Robert author 2022-09-07 Optical gas sensing for environmental monitoring has become an active research topic in the last decade. Among the different optical sensing configurations, silicon photonic integrated sensors stand as a compact, CMOS-compatible alternative. However, even small on-chip reflections can create significant fringes when the optical path length is varied, e.g., when the wavelength is swept for TDLAS-like measurements. These fringes can be critical for NIR sensors, as absorption signals are much weaker in this region than in the MIR. Here, we propose a signal-processing method based on minimum phase techniques: by increasing the measurement bandwidth to around 2 nm we can completely remove the reflection artifacts through processing. https://hdl.handle.net/10630/25132 Detectores ópticos - Congresos Detectores de gases - Congresos Óptica electrónica - Congresos Mitigating reflections in integrated gas sensors