Title of article
Influence of scattering and two-photon absorption on the optical loss in GaAs-Al/sub 2/O/sub 3/ nonlinear waveguides measured using femtosecond pulses
Author/Authors
K.، Moutzouris, نويسنده , , M.، Ebrahimzadeh, نويسنده , , Rao، Soma Venugopal نويسنده , , A.، De Rossi, نويسنده , , G.، Gintz, نويسنده , , M.، Calligaro, نويسنده , , V.، Ortiz, نويسنده , , V.، Berger, نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2003
Pages
-477
From page
478
To page
0
Abstract
The influence of scattering and two-photon absorption on the optical loss in GaAs-Al/sub 2/O/sub 3/ semiconductor nonlinear waveguides has been studied using femtosecond pulses. By deploying a scattering technique, loss coefficients were evaluated over an extended wavelength range of 1.3-2.1 (mu)m in the near-infrared. A systematic study involving intensity and wavelength dependence of the loss revealed the presence of two-photon absorption for wavelengths below 1.6 (mu)m. A simple nonlinear transmission study enabled the separation of the two-photon absorption coefficient from scattering and linear absorption. The calculated two-photon absorption coefficients were ~9-20 cm/GW.
Keywords
Laminated waveguide , low-temperature co-fired ceramic (LTCC) , waveguide transition , millimeter wave , rectangular waveguide (RWG)
Journal title
IEEE JOURNAL OF QUANTUM ELECTRONICS
Serial Year
2003
Journal title
IEEE JOURNAL OF QUANTUM ELECTRONICS
Record number
87338
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