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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 24, Iss. 11 — Jun. 1, 1999
  • pp: 756–758

Two-photon absorption-induced self-phase modulation in GaAs-AlGaAs waveguides for surface-emitted second-harmonic generation

Todd G. Ulmer, Ronson K. Tan, Zhiping Zhou, Stephen E. Ralph, Richard P. Kenan, Carl M. Verber, and Anthony J. SpringThorpe  »View Author Affiliations


Optics Letters, Vol. 24, Issue 11, pp. 756-758 (1999)
http://dx.doi.org/10.1364/OL.24.000756


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Abstract

Performance-limiting asymmetric distortion is observed in the spectra of fundamental pulses transmitted through GaAs–Al<sub>0.9</sub>Ga<sub>0.1</sub>As multilayer waveguides designed for surface-emitted second-harmonic generation. This behavior is attributed to refractive-index changes resulting from the accumulation of free carriers created by two-photon absorption in the GaAs layers. Numerical simulations of the intensity-dependent spectra by use of the separately measured two-photon absorption coefficient are shown to be in good agreement with the observed spectra.

© 1999 Optical Society of America

OCIS Codes
(190.4160) Nonlinear optics : Multiharmonic generation
(190.4180) Nonlinear optics : Multiphoton processes
(230.4320) Optical devices : Nonlinear optical devices

Citation
Todd G. Ulmer, Ronson K. Tan, Zhiping Zhou, Stephen E. Ralph, Richard P. Kenan, Carl M. Verber, and Anthony J. SpringThorpe, "Two-photon absorption-induced self-phase modulation in GaAs-AlGaAs waveguides for surface-emitted second-harmonic generation," Opt. Lett. 24, 756-758 (1999)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-24-11-756

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