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Titolo:
MODEL FOR BIDIRECTIONAL TRANSMISSION IN AN OPEN CASCADE OF OPTICAL AMPLIFIERS
Autore:
DELISLE C; CONRADI J;
Indirizzi:
COMMUN RES CTR OTTAWA ON K2H 8S2 CANADA TRLABS EDMONTON AB T5K 2P7 CANADA UNIV ALBERTA,DEPT ELECT ENGN EDMONTON AB CANADA
Titolo Testata:
Journal of lightwave technology
fascicolo: 5, volume: 15, anno: 1997,
pagine: 749 - 757
SICI:
0733-8724(1997)15:5<749:MFBTIA>2.0.ZU;2-C
Fonte:
ISI
Lingua:
ENG
Soggetto:
DOPED FIBER AMPLIFIERS; 622 MB/S; SYSTEMS; NOISE;
Keywords:
BIDIRECTIONAL; ERBIUM-DOPED FIBER AMPLIFIERS (EDFAS); OPTICAL FIBER COMMUNICATIONS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
15
Recensione:
Indirizzi per estratti:
Citazione:
C. Delisle e J. Conradi, "MODEL FOR BIDIRECTIONAL TRANSMISSION IN AN OPEN CASCADE OF OPTICAL AMPLIFIERS", Journal of lightwave technology, 15(5), 1997, pp. 749-757

Abstract

derive a model for signal propagation and the generation and propagation of amplified spontaneous emission (ASE) in a completely open bidirectional cascade of optical amplifiers, The effect of single Rayleigh scattering of both signal and ASE is included, Our model predicts and our experiments substantially verify that the dominant gain saturatingmechanism is the Rayleigh backscattered ASE centered around the 1535 nm peak in the ASE spectrum and that the spectral shape of the output ASE becomes much more sharply peaked around the 1535 nm gain peak, In an experimental open cascade of three EDFA's the ASE spectral density at the 1535 nm gain peak is increased by as much as 8-9 dB, resulting in gain compression ranging from 1-2 dB near 1550 nm to as much as 3-5dB nearer 1538 nm, This combined with multiple Rayleigh scattering ofthe ASE around our 1538 and 1540 nm signal wavelengths results in Rayleigh scattering induced reductions of the optical signal to ASE ratioof 1-2 dB at the output of the first amplifier increasing to 3-5 dB at the output of the third amplifier each signal traverses.

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Documento generato il 02/10/20 alle ore 01:32:24