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Dynamics of symmetrical mode beating in complex coupling two-section DFB lasers

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Abstract

The effect of gain/loss coupling on the modal dynamics of weakly-coupled self-pulsating two section DFB lasers is studied in detail. A purely symmetrical mode-beating regime exists for imaginary coupling values between  − 5% and 12.5%. The minimum required static detuning, the modulation index, and the tuning range of the predicted self-pulsations are sensitive to the magnitude of the gain/loss coupling. For the 10% gain-coupled DFB laser above 90% modulation index is predicted for self-pulsations between 34% and 123 GHz. For the 5% loss-coupled DFB laser above 50% modulation index is predicted for self-pulsations between 27 and 155 GHz.

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Authors and Affiliations

  1. College of Technological Studies, Shuwaikh, 70453, Kuwait

    Mohammed Al-Mumin

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  1. Mohammed Al-Mumin
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Correspondence to Mohammed Al-Mumin.

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Al-Mumin, M. Dynamics of symmetrical mode beating in complex coupling two-section DFB lasers. Opt Quant Electron 40, 361–366 (2008). https://doi.org/10.1007/s11082-008-9237-2

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  • DOI: https://doi.org/10.1007/s11082-008-9237-2

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