Simultaneous concealment of time delay signature in chaotic nanolaser with hybrid feedback
Sign Up to like & getrecommendations! Published in 2018 at "Optics and Lasers in Engineering"
DOI: 10.1016/j.optlaseng.2018.03.027
Abstract: Abstract Simultaneous suppression of time delay (TD) signature in all observables of optical chaos emission, i.e. in both intensity and phase, has been achieved using two or more semiconductor laser (SL) sources or using two… read more here.
Keywords: chaotic nanolaser; time; signature; time delay ... See more keywords
Security-Enhanced Electro-Optic Mutual Injection Secure Communication Scheme With Time-Delay Signature Suppressing
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Photonics Journal"
DOI: 10.1109/jphot.2023.3279282
Abstract: In this article, we propose and numerically demonstrate a novel dual-phase modulated time-delay signature (TDS) concealed communication system. The proposed system addresses the fatal disadvantage of conventional electro-optic chaotic systems in that TDS is vulnerable… read more here.
Keywords: electro optic; system; time delay; delay signature ... See more keywords
Time delay signature elimination of chaos in a semiconductor laser by dispersive feedback from a chirped FBG.
Sign Up to like & getrecommendations! Published in 2017 at "Optics express"
DOI: 10.1364/oe.25.010911
Abstract: Time delay signature (TDS) of a semiconductor laser subject to dispersive optical feedback from a chirped fibre Bragg grating (CFBG) is investigated experimentally and numerically. Different from mirror, CFBG provides additional frequency-dependent delay caused by… read more here.
Keywords: semiconductor laser; feedback chirped; feedback; delay ... See more keywords
Effect of chaotic time delay signature on Brillouin gain spectrum in the slope-assisted chaotic BOCDA.
Sign Up to like & getrecommendations! Published in 2020 at "Optics express"
DOI: 10.1364/oe.393087
Abstract: In the chaotic Brillouin optical correlation domain analysis (CBOCDA) system, the broadband chaotic laser naturally widens the Brillouin gain spectrum (BGS), which provides an enhanced range for dynamic strain measurement via slope-assisted technology. However, inherent… read more here.
Keywords: slope; delay signature; slope assisted; brillouin gain ... See more keywords
Numerical and experimental investigation of a dispersive optoelectronic oscillator for chaotic time-delay signature suppression.
Sign Up to like & getrecommendations! Published in 2023 at "Optics express"
DOI: 10.1364/oe.484659
Abstract: Chaos generation from a novel single-loop dispersive optoelectronic oscillator (OEO) with a broadband chirped fiber Bragg grating (CFBG) is numerically and experimentally investigated. The CFBG has much broader bandwidth than the chaotic dynamics such that… read more here.
Keywords: chaotic time; time delay; delay signature; dispersive optoelectronic ... See more keywords
Chaotic time-delay signature suppression with bandwidth broadening by fiber propagation.
Sign Up to like & getrecommendations! Published in 2018 at "Optics letters"
DOI: 10.1364/ol.43.004751
Abstract: Chaotic emission of a semiconductor laser is investigated through propagation over a fiber for achieving broadening of the bandwidth and suppression of the time-delay signature (TDS). Subject to delayed optical feedback, the laser first generates… read more here.
Keywords: propagation; suppression; fiber; time delay ... See more keywords
Experimental investigation on the time-delay signature of chaotic output from a 1550 nm VCSEL subject to FBG feedback
Sign Up to like & getrecommendations! Published in 2017 at "Photonics Research"
DOI: 10.1364/prj.5.000006
Abstract: The time-delay signature (TDS) of chaos output in a 1550 nm vertical-cavity surface-emitting laser (VCSEL) subject to fiber Bragg grating (FBG) feedback is investigated experimentally. Autocorrelation function (ACF) and mutual information (MI) are used for quantitatively… read more here.
Keywords: output 1550; vcsel; fbg feedback; feedback ... See more keywords