Development of a ion-exchanged glass integrated optics DFB laser for a LIDAR application

Abstract : In this paper, we present the development of a laser source for a LIDAR application. This sensor is proposed as a standby instrument to provide a way to measure some aircraft air data such as the air speed. Although such systems already exist, none of them are based on an optical measurement. Thus, the use of a LIDAR would provide a backup channel with different failure modes than existing systems. Our LIDAR system allows determining the air speed through Doppler measurement at a wavelength of 1.55 µm on aerosol particles present around the aircraft. The core of this device is a glass integrated optics continuous DFB laser. Its performances in term of single-frequency, stability, noise and linewidth are assessed in order to ensure the correct operation of the LIDAR system.
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Lionel Bastard, Jean-Emmanuel Broquin, Florent Gardillou, Cedric Cassagnettes, Jean-Pierre Schlotterbeck, et al.. Development of a ion-exchanged glass integrated optics DFB laser for a LIDAR application. SPIE Photonics West, International Society for Optics and Photonics, Feb 2009, San Jose, CA, United States. pp.721817, ⟨10.1117/12.811881⟩. ⟨hal-01963846⟩

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