Aluminum metaphosphate optical fibers

Details Aluminum metaphosphate optical fibers Aluminum metaphosphate optical fibers

1979-04-02

1981-11-24

Smith, Alfred E.

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

501 37, 501 77, 501900, C03B 37075, G02B 5172

Patent

active

043020747

ABSTRACT:
Aluminum metaphosphate optical fibers are disclosed. In a specific embodiment, aluminum metaphosphate, doped with from 10 to 30 mole percent of diboron trioxide, is found to yield an optical fiber which combines the desirable properties of both high numerical aperture and low material dispersion. The fiber is nonhygroscopic and has a high melting temperature. The index of refraction of the glass may be lowered by doping with silicon dioxide. Consequently, a graded fiber may be made by increasing the concentration of silicon oxide from the core to the cladding.

REFERENCES:
patent: 3778132 (1973-12-01), Pinnow et al.
patent: 3989350 (1976-11-01), Cohen et al.
patent: 4127415 (1978-11-01), Quachenbush et al.
patent: 4217027 (1980-08-01), MacChesney et al.

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