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Free space ranging based on a chaotic long-wavelength VCSEL with optical feedback

AuthorsQuirce, Ana ; Pérez, Pablo ; Valle, Ángel ; Pesquera, Luis ; Esquivias, Ignacio; Panajotov, Krassimir; Thienpont, Hugo
Issue Date2015
PublisherThe International Society for Optics and Photonics
CitationProceedings of SPIE 9357: 935703 (2015)
AbstractChaotic Lidar systems (CLIDAR) are used for high-resolution ranging. They are based on the correlation of a chaotic signal waveform with the signal that is reflected back from the target. We report a novel CLIDAR system based on the autocorrelation of the signal obtained by the superposition of the chaotic signal waveform and the signal that is reflected from the target. A simplified set-up with just one detector is required in contrast to the two detectors used in standard CLIDAR systems. Our experimental results are obtained with a 1550-nm vertical-cavity surface-emitting laser (VCSEL) with chaotic dynamics due to optical feedback. Our CLIDAR system provides an autocorrelation function with several sharp minima. The position of the target is obtained from the location of those minima. A theoretical analysis of the CLIDAR system is also presented. A rate equation model for the polarization of a VCSEL subject to optical feedback is the basis for the simulation of the CLIDAR system. A comparison between our theoretical and experimental results is performed, resulting in a good agreement in the chaotic signal but in a different sign of the CLIDAR signal.
DescriptionTrabajo presentado a la Physics and Simulation of Optoelectronic Devices XXIII Conference, celebrada en San Francisco, California (US) del 9 a 12 de febrero de 2015.
Publisher version (URL)https://doi.org/10.1117/12.2079508
Identifiersdoi: 10.1117/12.2079508
isbn: 9781628414479
Appears in Collections:(IFCA) Libros y partes de libros
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