Controlled dispersion optical waveguide

Details Controlled dispersion optical waveguide Controlled dispersion optical waveguide

1994-12-27

1996-09-03

Bovernick, Rodney B.

Optical waveguides

Optical fiber waveguide with cladding

Utilizing multiple core or cladding

385124, 385126, G02B 622

Patent

active

055531857

ABSTRACT:
A single mode optical waveguide fiber having low, non-zero dispersion over a pre-selected wavelength range is disclosed. The refractive index profile of the core is characterized in that the core includes a plurality of distinct regions, each having an index profile, and a radius or width. By adjusting the index profile sizes and shapes of the plurality of core regions, a waveguide fiber may be made having a set of properties tailored for a high performance telecommunication system. In particular, dispersion slope can be maintained less than 0.05 ps
m.sup.2 -km and absolute magnitude of total dispersion maintained in the range of 0.5 to 3.5 ps
m-km over a pre-selected wavelength range. The zero dispersion wavelength is outside the pre-selected wavelength range and the cut off wavelength and mode field diameter are controlled to target values.

REFERENCES:
patent: 4372647 (1983-02-01), Okamoto et al.
patent: 4691991 (1987-09-01), Unger
patent: 4715679 (1987-12-01), Bhagavatula
patent: 4877304 (1989-10-01), Bhagavatula
patent: 5013131 (1991-05-01), Fotheringham
patent: 5191631 (1993-03-01), Rosenberg
patent: 5327516 (1994-07-01), Chraplyvy et al.

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