1 May 1990 Measurement of polarization-dependent all-optical nonlinearity in GaAs/AlGaAs quantum well waveguides far from the band edge
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Abstract
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, n2 ,at a wavelength of 1.O6mare 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, 13 2, using relatively low optical power levels is also described.
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Ian H. White, Hon K. Tsang, Richard V. Penty, "Measurement of polarization-dependent all-optical nonlinearity in GaAs/AlGaAs quantum well waveguides far from the band edge", Proc. SPIE 1216, Nonlinear Optical Materials and Devices for Photonic Switching, (1 May 1990); doi: 10.1117/12.18105; https://doi.org/10.1117/12.18105
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