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Optical gain in Er-doped SiO2–TiO2 waveguides fabricated by the sol–gel technique

Materials SciencePhotonicsOptical MaterialsEngineeringOptical PropertiesApplied PhysicsSol–gel TechniqueGuided-wave OpticOptoelectronic DevicesEr-doped Sio2–tio2 WaveguidesPhotonic DeviceOptoelectronicsNanophotonicsOptical Gain