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US 10,241,259 B2Granted
Multimode optical fiber transmission system including single mode fiber
AssigneeCorning Incorporated
InventorsXin Chen, Ming-Jun Li
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Abstract
Some embodiments of the disclosure relate to an optical transmission system that operates at a wavelength in the range from 950 nm to 1600 nm and that employs a single-mode optical transmitter and an optical receiver optically coupled to respective ends of a multimode fiber designed for 850 nm multimode operation. The optical transmission system also employs at least one single mode fiber situated within the optical pathway between the optical transmitter and the receiver and coupled to the multimode fiber.
Claims14
A multimode optical fiber comprising:
- a core with an alpha value of 2.09≤α≤2.2 and a diameter D40, wherein 15 μm≤D40≤40 μm;
- a cladding surrounding said core, and a depressed index region situated within said cladding;
- a maximum relative refractive index delta Δ1 (%), wherein 0.7%≤Δ1≤2%;
- a multimode light transmission at a first wavelength λ1, wherein 840≤λ1≤860 nm;
- the fiber being structured to be capable of a single mode light transmission in an LP01 mode at a second wavelength λo, wherein 950 nm≤λo≤1600 nm;
- and
- wherein the LP01 mode has a LP01 mode field diameter LP01MFDMMλ0 at the second wavelength λo such that 8.5 μm<LP01MFDMMλ0<11 μm.
4 more elements
Dependencies are inferred from the claim text.