White, IH and Tsang, HK and Penty, RV (1990) Measurement of polarisation dependent all-optical nonlinearity in GaAs/AlGaAs quantum well waveguides far from the bandedge. Proceedings of SPIE - The International Society for Optical Engineering, 1216. pp. 20-29. ISSN 0277-786XFull text not available from this repository.
The all-optical nonlinearity of a quantum well waveguide is studied by measuring the intensity dependent transmission through a Fabry-Perot cavity formed around the guide. Values for the nonlinear refractive index coefficient, η 2, at a wavelength of 1.06μm are obtained for light whose polarisation is either parallel or perpendicular to the quantum well layers. A simple measurement to estimate the two photon absorption coefficient, B2, using relatively low optical power levels is also described.
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|Date Deposited:||15 Dec 2015 12:48|
|Last Modified:||06 Feb 2016 21:39|