Optical amplifier and method for amplifying wavelength...

Details Optical amplifier and method for amplifying wavelength... Optical amplifier and method for amplifying wavelength...

2005-05-10

2005-05-10

Moskowitz, Nelson (Department: 3663)

Optical: systems and elements

Optical amplifier

Correction of deleterious effects

C359S349000

Reexamination Certificate

active

06891662

ABSTRACT:
A rare earth element doped fiber forming an optical amplifier is pumped with a plurality of pumping lights to prevent drop of the inversion population ratio in the length direction of the rare earth element doped fiber.

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patent: 6381063 (2002-04-01), Liu
patent: 2001044551 (2001-02-01), None
Karasek, M. Gain Enhancement in Gain-Shifted Erbium-Doped Fiber Amplifiers for WDM Applications. IEEE Photonics Technology Letters, vol. 11, No. 9, Sep. 1999. pp. 1111-1113.*
Hwang et al. Comparative high power conversion efficiency of C-plus L-band EDFA. Electronics Letters. Dec. 6th, 2001. vol. 37. No. 25. pp. 1539-1541.*
Becker et al. Erbium-Doped Fiber Amplifiers Fundamentals and Technology. Academic Press. 1999. pp. 268-277.

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