Study of QCL Laser Sources for the Realization of Advanced Sensors
AbstractWe study the nonlinear dynamics of a quantum cascade laser (QCL) with a strong reinjection provided by the feedback from two external targets in a double cavity configuration. The nonlinear coupling of interferometric signals from the two targets allows us to propose a displacement sensor with nanometric resolution. The system exploits the ultra-stability of QCLs in self-mixing configuration to access the intrinsic nonlinearity of the laser, described by the Lang–Kobayashi model, and it relies on a stroboscopic-like effect in the voltage signal registered at the QCL terminals that relates the “slow” target motion to the “fast” target one. View Full-Text
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de Risi, G.; Columbo, L.L.; Brambilla, M. Study of QCL Laser Sources for the Realization of Advanced Sensors. Sensors 2015, 15, 19140-19156.
de Risi G, Columbo LL, Brambilla M. Study of QCL Laser Sources for the Realization of Advanced Sensors. Sensors. 2015; 15(8):19140-19156.Chicago/Turabian Style
de Risi, Giuseppe; Columbo, Lorenzo L.; Brambilla, Massimo. 2015. "Study of QCL Laser Sources for the Realization of Advanced Sensors." Sensors 15, no. 8: 19140-19156.