1980-10-01
1983-02-08
Nussbaum, Marvin L.
350 9634, G02B 514
Patent
active
043726470
ABSTRACT:
In a single mode optical fiber of the type comprising a core, a cladding surrounding the core and an intermediate layer, the refractive indices n1, n2 and n3 respectively of the core, the cladding and the intermediate layer are selected such that the following relations are satisfied
REFERENCES:
patent: 3997241 (1976-12-01), Nishida et al.
patent: 4185890 (1980-01-01), Onoda et al.
patent: 4206968 (1980-06-01), Suganuma et al.
Kawakimi et al., "Characteristics of a Doubly Clad Optical Fiber with a Low-Index Inner Cladding", IEEE Journal of Quantum Electronics, Dec. 1974; pp. 879-887.
Daikoku et al., "Direct Measurement of Wavelength Dispersion in Optical Fibres-Difference Method", Electronics Letters, Mar. 2, 1978, vol. 14, No. 5; pp. 149-151.
Miya et al., "Ultimate Low Loss Single-Mode Fibre at 1.55 .mu.m", Electronics Letters, Feb. 15, 1979; pp. 106-108.
Edahiro Takao
Kawana Akio
Miya Tetsuo
Okamoto Katsunari
Nippon Telegraph & Telephone Public Corporation
Nussbaum Marvin L.
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