GEP19970935B - Wide-band optical amplifier - Google Patents

Wide-band optical amplifier

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Publication number
GEP19970935B
GEP19970935B GEAP19931213A GEAP1993001213A GEP19970935B GE P19970935 B GEP19970935 B GE P19970935B GE AP19931213 A GEAP19931213 A GE AP19931213A GE AP1993001213 A GEAP1993001213 A GE AP1993001213A GE P19970935 B GEP19970935 B GE P19970935B
Authority
GE
Georgia
Prior art keywords
core
erbium
cores
optical amplifier
amplifier
Prior art date
Application number
GEAP19931213A
Inventor
Pol Lorens Skrivener
Giorgio Grasso
Original Assignee
Pireli Kapi S P A
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pireli Kapi S P A filed Critical Pireli Kapi S P A
Priority to GEAP19931213A priority Critical patent/GEP19970935B/en
Publication of GEP19970935B publication Critical patent/GEP19970935B/en

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Abstract

The invention relates to an optical amplifier, particularly for optical fibre telecommunications lines, operating with the transmission signal in a predetermined wavelength band, which comprises an active laser emission optical fibre (6), doped with Erbium, having portions (11) of limited length provided with two cores (12, 13), one (12) of which is connected to the cores (16) of the remaining portions of active fibre (6) and with the line fibres (7), constituting the amplifier's input and output, while the second core (13) is optically coupled with the first (12) at a specific wavelength, different from that of transmission; ; the second core (13) is capable of removing from the first core (12) the spontaneous emission light of the Erbium, which would constitute a source of noise, thus allowing the amplification of a transmission signal in a range of wavelengths substantially corresponding to that of the tolerance of laser signal emitters (2) of a commercial type.
GEAP19931213A 1993-07-26 1993-07-26 Wide-band optical amplifier GEP19970935B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GEAP19931213A GEP19970935B (en) 1993-07-26 1993-07-26 Wide-band optical amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GEAP19931213A GEP19970935B (en) 1993-07-26 1993-07-26 Wide-band optical amplifier

Publications (1)

Publication Number Publication Date
GEP19970935B true GEP19970935B (en) 1997-03-26

Family

ID=82484141

Family Applications (1)

Application Number Title Priority Date Filing Date
GEAP19931213A GEP19970935B (en) 1993-07-26 1993-07-26 Wide-band optical amplifier

Country Status (1)

Country Link
GE (1) GEP19970935B (en)

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