Low-frequency self-pulsations in asymmetric external-cavity semiconductor lasers due to multiple-feedback effects

Journal Article · Sun Oct 01 04:00:00 EDT 1989 · Optics Letters; (USA)

DOI:https://doi.org/10.1364/OL.14.001054· OSTI ID:5522619

Park, J; Seo, D; McInerney, J G ^[1]; Dente, G C ^[2]; Osinski, M ^[3]

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1. Optoelectronic Device Physics Group, Center for High Technology Materials, University of New Mexico, Albuquerque, New Mexico 87131 (US)
2. G.C.D. Associates, 2100 Alvarado N.E., Albuquerque, New Mexico 87110
3. Center for High Technology Materials, University of New Mexico, Albuquerque, New Mexico 87131

We investigate the dynamical stability of external-cavity semiconductor lasers with deliberate tilt asymmetries. Experimentally observed low-frequency self-pulsations are explained by small-signal analysis based on a new rate-equation model that uses a time-dependent effective reflectivity to include multiple-feedback effects. We observe and explain the dependence of the self-pulsation frequency on the strength and degree of asymmetry of the feedback, on the injection current, and on the external-cavity length. These results are important in interpreting instabilities, chaos, and other complex dynamical phenomena in external-cavity semiconductor lasers.

• OSTI ID: 5522619
• Journal Information: Optics Letters; (USA), Journal Name: Optics Letters; (USA) Vol. 14:19; ISSN 0146-9592; ISSN OPLED
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
FEEDBACK
LASER CAVITIES
LASERS
NONLINEAR OPTICS
OPERATION
OPTICAL SYSTEMS
OPTICS
SEMICONDUCTOR DEVICES
SEMICONDUCTOR LASERS
SOLID STATE LASERS
STABILITY