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Optics Letters

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  • Vol. 29, Iss. 1 — Jan. 1, 2004
  • pp: 53–55

Waveguiding effects in self-pulsing vertical-cavity surface-emitting lasers

Guy Van der Sande, Krassimir Panajotov, Michael Peeters, Irina Veretennicoff, Jan Danckaert, and Thomas Erneux  »View Author Affiliations


Optics Letters, Vol. 29, Issue 1, pp. 53-55 (2004)
http://dx.doi.org/10.1364/OL.29.000053


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Abstract

Self-pulsing in semiconductor lasers containing a saturable absorber is well documented. We propose an alternative mechanism leading to self-pulsing in vertical-cavity surface-emitting lasers. We specifically consider waveguiding effects and determine the conditions for self-pulsing. Our theoretical and numerical results agree with experimental observations reported by Willemsen et al. [Appl. Phys. Lett. 77, 3514 (2000)].

© 2004 Optical Society of America

OCIS Codes
(190.3100) Nonlinear optics : Instabilities and chaos
(190.5940) Nonlinear optics : Self-action effects
(250.7260) Optoelectronics : Vertical cavity surface emitting lasers

Citation
Guy Van der Sande, Krassimir Panajotov, Michael Peeters, Irina Veretennicoff, Jan Danckaert, and Thomas Erneux, "Waveguiding effects in self-pulsing vertical-cavity surface-emitting lasers," Opt. Lett. 29, 53-55 (2004)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-29-1-53


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References

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  13. The intensity-dependent confinement factor G can be found by solving n22p2u3+2n0 n2V2pu2+V2(n20-n2a)u-(n20-n2a)=0 for u=1-G, where V is the normalized frequency and na (n0) represents the refractive index in the unpumped (core) region. We found that a≈2n0n2/V4G 0(n20-n2a), while b≈G0a/(G sat-G0), with Gsat being the saturated confinement factor.
  14. M. Peeters, MODEL: The Modest Ordinary Differential Equation Library, C++ framework, available at http://model.sourceforge.net (2000–2003).
  15. K. Panajotov, G. Van der Sande, H. Thienpont, and I. Veretennicoff have submitted a paper called “Self-pulsation in VCSELs as a result of the interplay between carrier-induced antiguiding and build-in index guiding” to J. Opt. Soc. Am. B.

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