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Rottwitt, Karsten
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Topics
Publications (12/12 displayed)
- 2018Analytic description of four-wave mixing in silicon-on-insulator waveguidescitations
- 2017Study of Raman-free photon pair generation using inter-modal four-wave mixing in a few-mode silica fiber
- 2017Effects of Raman scattering and attenuation in silica fiber-based parametric frequency conversioncitations
- 2017Effects of noninstantaneous nonlinear processes on photon-pair generation by spontaneous four-wave mixingcitations
- 2012High-Energy Four-Wave Mixing, with Large-Mode-Area Higher-Order Modes in Optical Fibres
- 2009Measurement and modeling of low-wavelength losses in silica fibers and their impact at communication Wavelengthscitations
- 2008730-nm optical parametric conversion from near- to short-wave infrared bandcitations
- 2008Ge nanoclusters in PECVD-deposited glass caused only by heat treatmentcitations
- 2008Low Wavelength Loss of Germanium Doped Silica Fiberscitations
- 2007Ge nanoclusters in PECVD-deposited glass after heat treating and electron irradiationcitations
- 2004GE NANOCLUSTERS IN PLANAR GLASS WAVEGUIDES DEPOSITED BY PECVD
- 2003Sub-micrometer waveguide for nano-optics
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article
Measurement and modeling of low-wavelength losses in silica fibers and their impact at communication Wavelengths
Abstract
Using the cutback technique, the attenuation of four different silica step-index fibers is measured in the very wide wavelength range of 190-1700 nm. The measured spectra are deconvolved into components describing Rayleigh scattering, infrared losses, Urbach edge, anomalous loss, and different localized absorptions using a least squares fit. The evaluated Urbach edge is compared against results based on measurements on bulk glass samples and good agreement between the two is found. Furthermore, the Urbach edge is found to contribute significantly to the overall attenuation at communication wavelengths for two of the four fibers investigated.