Graded index multimode optical fiber
AssigneeMitsubishi Cable Industries, Ltd.
InventorsHaruo Ooizumi, Syuichi Kusunoki, Takaharu Kinoshita, Masayoshi Hachiwaka
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Abstract
A graded index multimode optical fiber (10) includes: a core (11) having an outside diameter of 45-65 μm; a first cladding (12) surrounding the core (11); a second cladding (13) surrounding the first cladding (12) and made of a material having a lower refractive index than the first cladding (12); and a third cladding (14) surrounding the second cladding (13) and made of a material having a higher refractive index than the second cladding (13). The ratio of the outside diameter of the first cladding (12) to the outside diameter of the core (11) is 1.15-1.25.
Claims3
A graded index multimode optical fiber comprising:
- a core having an outside diameter of 45-65 μm;
- a first cladding surrounding the core;
- a second cladding surrounding the first cladding and made of a material having a lower refractive index than the first cladding;
- and
- a third cladding surrounding the second cladding and made of a material having a higher refractive index than the second cladding,
- wherein a ratio of an outside diameter of the first cladding to the outside diameter of the core is 1.15-1.25, and
- wherein the second cladding has a thickness of 7.5-15 μm.
A graded index multimode optical fiber comprising:
- a core having an outside diameter of 45-65 μm;
- a first cladding surrounding the core;
- a second cladding surrounding the first cladding and made of a material having a lower refractive index than the first cladding;
- and
- a third cladding surrounding the second cladding and made of a material having a higher refractive index than the second cladding,
- wherein a ratio of an outside diameter of the first cladding to the outside diameter of the core is 1.15-1.25, and
- wherein the relative refractive index difference of the second cladding with respect to the first cladding is 0.5-1.5%.
Dependencies are inferred from the claim text.