Applied Physics Letters · 1988 · 27 citations · 4 references
EngineeringElectrical EngineeringMaterials ScienceOpticsOptoelectronicsPhotonicsNonlinear Optical MaterialsNonlinear OpticsOptical ModulationOptical WaveguidesQuantum Well DevicesRefractive IndexAll-optical ModulationMolecular Beam EpitaxyNonlinear Optical ModulationNonlinear PhotonicsNonlinear RefractionNonlinear Refractive IndexNonlinear WaveguidesOptical Lithography
The performance characteristics of an AlGaAs dual waveguide vertical coupler with a nonlinear GaAs/AlGaAs multiquantum well coupling medium are demonstrated. The structure was grown by molecular beam epitaxy and fabricated by optical lithography and ion milling. The nonlinear coupling and modulation behavior is identical to that predicted theoretically. The nonlinear index of refraction and critical input power are estimated to be n2=1.67×10−5 cm2/W and Pc=170 W/cm2, respectively. This device also allows reliable measurement of the nonlinear refractive index for varying quantum well and optical excitation parameters.
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The nonlinear coherent coupler
S. M. Jensen · IEEE Journal of Quantum Electronics · 1982 · 965 citations
All optical multiple-quantum-well waveguide switch
P. Li Kam Wa, J.E. Sitch, N. J. Mason et al. · Electronics Letters · 1985 · 220 citations