Laser optimized multimode fiber and method for use with laser and LED sources and system employing same
AssigneeCorning Incorporated
InventorsJohn S. Abbott, III, Douglas E. Harshbarger
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Abstract
A multimode optical fiber having a first laser bandwidth greater than 220 MHz.km in the 850 nm window, a second laser bandwidth greater than 500 MHz.km in the 1300 nm window, a first OFL bandwidth of at least 160 MHz.km in the 850 nm window, and a second OFL bandwidth of at least 500 MHz.km in the 1300 nm window is disclosed. The multimode fiber is capable of operating in telecommunication systems employing both LED power sources and high power laser sources. Methods of making and testing the multimode optical fiber are also disclosed.
Claims17
A multimode optical fiber comprising a core region and a clad region said clad region having a refractive index lower than the refractive index of said core region, and wherein said core of said multimode optical fiber exhibits a DMD profile curve, which when measured at a wavelength of 850 nm, comprises a first region of the DMD profile curve having a first slope and a second region of the DMD profile curve having a second slope, and said first slope is different that said second slope.
An optical fiber preform, comprising:
- a core region having a refractive index with a characteristic differential mode delay;
- and a cladding region surrounding the core region and having a refractive index lower than the refractive index of the core region,
- CHARACTERIZED IN THAT
- the characteristic differential mode delay of the core region includes a first set of differential mode delay modes and a second set of differential mode delay modes, wherein the firs set of differential mode delay modes exhibits a DMD profile curve having a first slope and the second set of differential mode delay modes exhibits a DMD profile curve having a second slope that is different from the first slope.
Dependencies are inferred from the claim text.