High Sensitivity Remote Gas Sensing using Integrated Photonic Correlation Filters

Absorption spectroscopy is a powerful technique for characterizing remote gas composition where direct interaction with a target it not possible. While dispersive spectroscopy is typically used to acquire a spectrum with which the gas presence is determined, correlation spectroscopy can directly detect such spectral features in a single detection channel. Here we present a novel integrated photonics correlation technique on an integrated photonic platform which uses real-time spectral processing to generate a multiline gas specific detection signal.
2020 Photonics North (PN), May 26-28, 2020, Niagara Falls, ON, Canada