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Phys. Rev. E 67, 025604 (2003) [4 pages]

Hilbert phase analysis of the dynamics of a semiconductor laser with optical feedback

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Wing-Shun Lam1,2, Parvez N. Guzdar2, and Rajarshi Roy1,2,3
1Department of Physics, University of Maryland, College Park, Maryland 20742
2IREAP, University of Maryland, College Park, Maryland 20742
3IPST, University of Maryland, College Park, Maryland 20742

Rapid Communication Received 15 February 2002; published 27 February 2003

The nonlinear dynamics of a semiconductor laser with an optical feedback is studied using Hilbert phase analysis, which reveals interesting facets of the nonlinear dynamical behavior, including the formation and interaction of external cavity modes with increasing external feedback. Here we report measurements on two illustrative cases with very different dynamics; the laser is first biased just near threshold, and then far above threshold. We observe 2π phase jumps at intervals that are multiples of the external cavity round-trip time, indicating the interaction and transfer of energy between external cavity modes.


©2003 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevE.67.025604
DOI: 10.1103/PhysRevE.67.025604
PACS: 42.65.Sf, 05.40.Ca, 05.45.Jn, 42.55.Px

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