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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 13 — May. 1, 2009
  • pp: 2505–2514

Effects of heat induced by two-photon absorption and free-carrier absorption in silicon-on-insulator nanowaveguides operating as all-optical wavelength converters

Siamak Abdollahi and Mohammad Kazem Moravvej-Farshi  »View Author Affiliations

Applied Optics, Vol. 48, Issue 13, pp. 2505-2514 (2009)

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We propose a new numerical model to analyze heat induced by two-photon absorption and free-carrier absorption, while high intensity optical pulses propagate along silicon-on-insulator (SOI) nanowaveguides (NWGs). Using this model, we demonstrate that such induced heat causes a shift in the amount of wavelength conversion and hence deteriorates the converter output characteristics for pulses in the picosecond regime. The wavelength shift induced by a pulse with maximum input intensity and full width at half-maximum of I max = 1.5 × 10 10 W . cm 2 and T FWHM = 30 ps , propagating along a SOI NWG with an effective cross-sectional area of a eff = 0.15 μm 2 , is shown to be Δ λ s 8 pm . We also demonstrate that such a shift can be compensated by tuning the pump intensity down by approximately 6.33%.

© 2009 Optical Society of America

OCIS Codes
(190.3270) Nonlinear optics : Kerr effect
(190.4360) Nonlinear optics : Nonlinear optics, devices
(230.7370) Optical devices : Waveguides
(230.7405) Optical devices : Wavelength conversion devices

ToC Category:
Integrated Optics

Original Manuscript: January 27, 2009
Revised Manuscript: April 6, 2009
Manuscript Accepted: April 7, 2009
Published: April 27, 2009

Siamak Abdollahi and Mohammad Kazem Moravvej-Farshi, "Effects of heat induced by two-photon absorption and free-carrier absorption in silicon-on-insulator nanowaveguides operating as all-optical wavelength converters," Appl. Opt. 48, 2505-2514 (2009)

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