作者: William A. Reed , Leonard G. Cohen , Hen-Tai Shang
DOI: 10.1002/J.1538-7305.1986.TB00383.X
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摘要: Next-generation single-mode lightguides may be used in the 1.55-μm wavelength region where losses are a minimum for silica-based fibers. This paper discusses basic fiber requirements of these new systems and provides design parameters three types dispersion-shifted fibers with various graded-index core profiles. The generic structural differences that one type has continuous cladding; second depressed-cladding index relative to an outer substrate layer; third up four cladding layers different values. latter includes lightguide structure narrow depressed-index trench within its cladding. Results show how choose order tailor dispersion mode-confinement properties.