Multimode optical fiber with high bandwidth, and corresponding multimode optical system

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United States of America Patent

PATENT NO 9921369
SERIAL NO

15510296

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Abstract

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The invention concerns a multimode optical fiber, with an ct-profile graded-index core with an a-value between 1.96 and 2.05 and a N value defined as N=(R1/λ)2(n12−n02) between 7 and 52, where R1 is the multimode core radius, n1 is the maximum index of the multimode core and n0 is the minimum index at the outer edge of the graded index core. According to the invention, a depressed region directly surrounds the graded/index core and satisfies the criteria: −2.202<0, where Dn2 is the index difference of depressed region with external cladding, and 220 Ln(N)−11002<220 Ln(N)−865, where V2 is the volume of the depressed region. Such a multimode fiber shows an increased OFL-bandwidth above 10000 Hz·km at an operating wavelength between 950 nm and 1310 nm.

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Patent Owner(s)

Patent OwnerAddress
DRAKA COMTEQ B VDE BOELELAAN 7 AMSTERDAM 1083 HJ

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bigot, Marianne Paron, FR 13 47
Molin, Denis Paron, FR 82 4183
Sillard, Pierre Paron, FR 114 4615

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