Dispersion flattening in a w-fiber
Författare
Summary, in English
A method for dispersion-flattening in double-clad single-mode optical fibers
is presented. The chromatic dispersion over the wavelength range [1.25 µm,
1.60 µm] is minimized for a w-fiber and also for a triangular-index fiber with
a depressed inner cladding. The constraint that the first higher order mode
should appear exactly at 1.25 µm is imposed. The full vector solution of
Maxwell’s equations is used. Applying an approximate refractive-index model,
it is found that the w-fiber is capable of yielding a rms-dispersion less than
1 ps/(km nm). A doping level of two per cent in the core is necessary to
achieve this. How to interpret this numerical result is not clear,since the
approximate refractive-index model used is,in this context,crude.
is presented. The chromatic dispersion over the wavelength range [1.25 µm,
1.60 µm] is minimized for a w-fiber and also for a triangular-index fiber with
a depressed inner cladding. The constraint that the first higher order mode
should appear exactly at 1.25 µm is imposed. The full vector solution of
Maxwell’s equations is used. Applying an approximate refractive-index model,
it is found that the w-fiber is capable of yielding a rms-dispersion less than
1 ps/(km nm). A doping level of two per cent in the core is necessary to
achieve this. How to interpret this numerical result is not clear,since the
approximate refractive-index model used is,in this context,crude.
Publiceringsår
1993
Språk
Engelska
Publikation/Tidskrift/Serie
Technical Report LUTEDX/(TEAT-7024)/1-7/(1993)
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Dokumenttyp
Rapport
Förlag
[Publisher information missing]
Ämne
- Electrical Engineering, Electronic Engineering, Information Engineering
- Other Electrical Engineering, Electronic Engineering, Information Engineering
Status
Published
Report number
TEAT-7024
Forskningsgrupp
- Electromagnetic theory