Discrete Relaxation Oscillation Frequency Hopping in Delayed-feedback Semiconductor Lasers
- Kovalev, A.V.
- Dmitriev, P.A.
- Tykalewicz, B.
- Goulding, D.
- Kelleher, B.
- Wishon, M.J.
- Locquet, A.
- Viktorov, E.A.
Publication date
January 2018
DOI Publisher
Institute of Electrical and Electronics Engineers (IEEE)Abstract
International audienceWe study the dynamics of semiconductor lasers subject to strong delayed optical feedback. We find that the discrete nature of the external-cavity modes leads to a discrete set of relaxation oscillation frequencies observed at the onset of the first instability as the pump current is increased. This explains experimentally observed hops between the frequencies
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