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Proceedings Article

Calculation of quasi phasematching in optical parametric GaAs/AlGaAs waveguides

[+] Author Affiliations
Kenneth L. Schepler

Air Force Research Lab. (USA)

Justin B. Spring

U.S. Air Force Academy (USA)

Proc. SPIE 7197, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VIII, 719708 (February 23, 2009); doi:10.1117/12.808035
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From Conference Volume 7197

  • Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VIII
  • Peter E. Powers
  • San Jose, CA | January 24, 2009

abstract

Quasi phasematched domain periods for bulk and waveguide GaAs nonlinear frequency conversion were calculated. Waveguide beam confinement resulted in a decrease in effective refractive index and the magnitude of this index change was found to increase supralinearly with wavelength. Domain periodicity required for a 2.056-μm pumped, 10x10 μm2 GaAs core, Al0.5Ga0.5As cladding waveguide OPO at degeneracy decreased from 60.4 μm for bulk GaAs to 57.9 μm for a rib waveguide and 49.8 μm for a buried waveguide in a GaAs OPO. Careful accounting for waveguide effects is necessary to fabricate a periodic waveguide structure with the desired function.

© (2009) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Kenneth L. Schepler and Justin B. Spring
"Calculation of quasi phasematching in optical parametric GaAs/AlGaAs waveguides", Proc. SPIE 7197, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VIII, 719708 (February 23, 2009); doi:10.1117/12.808035; http://dx.doi.org/10.1117/12.808035


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