Electronics Letters · 1998 · 18 citations · 6 references
EngineeringElectrical EngineeringOpticsOptoelectronicsPhotonicsFiber OpticsHolographyInterferometryOptical AberrationsOptical FibersOptical MetrologyDiffraction GratingsFiber Bragg GratingsFiber Optic InterferometryOptical InterferometryReflectivity
The authors present a new interferometric technique for writing apodised Bragg gratings. Along the fibre, two UV-pulses interfere with a variable time delay, creating a Gaussian apodisation profile which strongly reduces the reflectivity sidelobes. This method allows the writing of truly apodised gratings by single exposure of a uniform phase-mask.
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Apodised in-fibre Bragg grating reflectorsphotoimprinted using a phase mask
B. Malo, S. Thériault, D.C. Johnson et al. · Electronics Letters · 1995 · 137 citations · Full text
Natural Sciences, Electrical Engineering, Materials Science +14