Optics Letters · 2003 · 65 citations · 3 references
Natural SciencesPhysicsBiomedical ImagingOptical MaterialsOpticsFiber OpticsInterferometryOptical FibersOptical ImagingPhysical OpticsRefractive IndexBragg DiffractionDifferential Interference Contrast MicroscopyDiffraction GratingsDiffraction Pattern AnalysisFiber Bragg GratingsNondestructive AnalysisPhase GratingsRefractive Index Imaging
Nondestructive images of refractive-index variation within a type I fiber Bragg grating have been recorded by the differential interference contrast imaging technique. The images reveal detailed structure within the fiber core that is consistent with the formation of Talbot planes in the diffraction pattern behind the phase mask that had been used to fabricate the grating.
3