Staged amplifier for lower noise figure and higher...

Optical: systems and elements – Optical amplifier – Correction of deleterious effects

Reexamination Certificate

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C359S337400

Reexamination Certificate

active

07440171

ABSTRACT:
An optical amplifier utilizes two or more doped fiber segments or portions to achieve a lower noise figure and a higher saturation power than would be possible using any one of the doped fiber segments. Each doped fiber portion may be considered to be a doped fiber optical amplifier, and has a different doping level than each of the other doped fiber portions. Each such doped fiber portion has distinct amplitude gain and noise characteristics relative to each of the other doped fiber potions. The two or more doped fiber portions are coupled to each other in series and most often in a predefined order based on their relative amplitude gain, noise and saturation power characteristics.

REFERENCES:
patent: 5027079 (1991-06-01), Desurvire et al.
patent: 5278686 (1994-01-01), Grasso et al.
patent: 5532870 (1996-07-01), Shigematsu et al.
patent: 5640269 (1997-06-01), Shigematsu et al.
patent: 5731892 (1998-03-01), DiGiovanni et al.
patent: 5742427 (1998-04-01), Kakui et al.
patent: 5880877 (1999-03-01), Fermann et al.
patent: 6266180 (2001-07-01), Inagaki et al.
patent: 6429964 (2002-08-01), Delavaux et al.
patent: 6462862 (2002-10-01), Kinoshita
patent: 6850677 (2005-02-01), Dennis et al.
patent: 2003/0031440 (2003-02-01), Dennis et al.
Becker, P. C., et al. “Erbium-Doped Fiber Amplifiers Fundamentals and Technology”, Academic Press, San Diego, 1999, pp. 169, 178-179.
“Erbium-Doped Fiber:High Performance Fibers for Superior Amplifiier Design”, Furukawa Electric North America, Inc. (2004).
Becker et al., Erbium-Doped Fiber Amplifiers: Fundmentals and Technology, Academic Press, San Diego, (1999), pp. 44-47.

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