Wide band-width high NA optical fiber

Details Wide band-width high NA optical fiber Wide band-width high NA optical fiber

1991-02-22

1992-06-16

Lee, John D.

Optical waveguides

Optical fiber waveguide with cladding

With graded index core or cladding

385145, G02B 618

Patent

active

051230763

ABSTRACT:
An optical fiber which comprises a core made of a glass material, a thin plastic cladding formed on the peripheral surface of the core and a plastic coating formed on the plastic cladding, and satisfies the conditions (1) a specific refractive index of cladding resin after curing being 0.970 to 0.985 times that of the core periphery at a practical wavelength at ambient temperature, (2) light transmission through the cladding resin after curing being 500 to 4000 dB/km at a practical wavelength, and (3) a coefficient of linear expansion of the cladding resin after curing being not larger than 2.0.times.10.sup.-4 /.degree.C., which optical fiber has a wide band-width and high NA.

REFERENCES:
patent: 4167305 (1979-09-01), Ichiba et al.
patent: 4756599 (1988-07-01), Maeda et al.
patent: 4946239 (1990-08-01), Garmon

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