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

Ana Quirce; Pablo Perez; Angel Valle; Luis Pesquera; Ignacio Esquivias; Krassimir Panajotov; Hugo Thienpont

doi:10.1117/12.2079508

16 March 2015 Free space ranging based on a chaotic long-wavelength VCSEL with optical feedback

Ana Quirce, Pablo Perez, Angel Valle, Luis Pesquera, Ignacio Esquivias, Krassimir Panajotov, Hugo Thienpont

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Proceedings Volume 9357, Physics and Simulation of Optoelectronic Devices XXIII; 935703 (2015) https://doi.org/10.1117/12.2079508
Event: SPIE OPTO, 2015, San Francisco, California, United States

Abstract

Chaotic 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.

Citation Download Citation

Ana Quirce, Pablo Perez, Angel Valle, Luis Pesquera, Ignacio Esquivias, Krassimir Panajotov, and Hugo Thienpont "Free space ranging based on a chaotic long-wavelength VCSEL with optical feedback", Proc. SPIE 9357, Physics and Simulation of Optoelectronic Devices XXIII, 935703 (16 March 2015); https://doi.org/10.1117/12.2079508

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KEYWORDS

Vertical cavity surface emitting lasers

Polarization

Radio optics

Optical amplifiers

Ranging

Connectors

Signal detection

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