Abstract
Experiments and theory on optical feedback effects for different delay times in a system consisting of a GaAlAs-DH diode coupled to an external resonator are presented. Two hysteresis types are found, for short and long delay times. In the case of short optical delay the low-power hysteresis branch corresponds to the noise level below the lasing threshold, whereas for a long delay regular or irregular pulsations of considerable mean power occur. On the upper power level c.w. single-mode emission is dominant for both of the hysteresis types. Dynamic losses due to spectral bandwidth changes may explain the different behaviour.
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Glas, P., Müller, R. Different kinds of bistable behaviour of a GaAlAs diode coupled to an external cavity of variable length. Opt Quant Electron 19 (Suppl 1), S61–S74 (1987). https://doi.org/10.1007/BF02034353
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DOI: https://doi.org/10.1007/BF02034353