Optical fiber

Details Optical fiber Optical fiber

2005-08-03

2008-10-21

Bolda, Eric (Department: 3663)

Optical: systems and elements

Optical amplifier

Raman or brillouin process

C359S341500, C359S341310, C385S123000, C385S126000, C385S127000

Reexamination Certificate

active

07440165

ABSTRACT:
Provided is an optical fiber. The optical fiber includes a core and a cladding, the core containing a first element for inducing non-linear Raman phenomenon, and the cladding containing a second element which is a rare earth element, wherein when the optical fiber is pumped by two pumping light sources having different wavelengths with each other, the optical signals in the first and third band are Raman-amplified by the first element and the signals in the second band are amplified by a direct transition of the second element.

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‘Simultaneous Amplification by Er Ions and SRS in an Er-Doped Germano-Silica Fiber’ Seo et al., IEEE Photonics Technology Letters, vol. 15, No. 9, Sep. 20003, pp. 1198-1200.
T.N. Nielsen, et al; “3.28-TB/S (82×40GB/S) transmission over 3×100KM Nonzero-dispersion fiber using dual C- and L-bank hybrid Raman/Erbium-doped inline amplifiers;” Optical Fiber Communication Conference. (OFC) Technical Digest Postconference Edition. Baltimore MD, Mar. 7-10, 2000, New York, NY, IEEE, US, vol. 4 of 4, Mar. 7, 2000 pp. 236-238, XP001036110.
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