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Super-harmonic self-pulsations from a time-delayed phase-conjugate optical system

Abstract : We provide experimental evidence of super-harmonic self-pulsation in a laser diode with a phase-conjugate optical feedback (PCF), i.e., time-periodic nearly sinusoidal oscillating output power at a frequency being multiple of the external-cavity frequency that corresponds to the long-standing predictions of so-called “external-cavity mode” [G. P. Agrawal and J. T. Klaus, Opt. Lett. 16, 1325–1327 (1991)]. High-harmonic self-pulsations have been so far limited to configurations with long time-delay, hence to relatively small frequencies (<1–2 GHz). By contrast, the reported self-pulsating solutions from PCF are stable in a larger range of feedback strength and with higher-order harmonic number when decreasing the external-cavity time-delay.
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Submitted on : Friday, January 23, 2015 - 1:10:11 PM
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Andreas Karsaklian Dal Bosco, Delphine Wolfersberger, Marc Sciamanna. Super-harmonic self-pulsations from a time-delayed phase-conjugate optical system. Applied Physics Letters, American Institute of Physics, 2014, 105 (8), pp.081101-4. ⟨10.1063/1.4894119⟩. ⟨hal-01108723⟩



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