We present experimental results of the dynamics in a semiconductor laser operating on several longitudinal modes subject to external feedback. Both low-frequency fluctuations (LFFs) and locked states are studied through observing the outputs from the dominant mode, all modes except the dominant mode, and all modes. Synchronized dropout events of LFFs are observed among each of the solitary modes while energy competition and trading occurs among these modes when the total output exhibits the locked state.
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Wallace et al. (2000) studied this question.
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