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Titolo:
Wavelength stabilization technique using dithering-induced AM cancellationfor DWDM systems
Autore:
Horiuchi, Y; Yamamoto, S; Suzuki, M;
Indirizzi:
KDDI R&D Labs Inc, Kamifukuoka, Saitama 3568502, Japan KDDI R&D Labs Inc Kamifukuoka Saitama Japan 3568502 aitama 3568502, Japan
Titolo Testata:
IEICE TRANSACTIONS ON COMMUNICATIONS
fascicolo: 5, volume: E84B, anno: 2001,
pagine: 1145 - 1152
SICI:
0916-8516(200105)E84B:5<1145:WSTUDA>2.0.ZU;2-9
Fonte:
ISI
Lingua:
ENG
Soggetto:
FREQUENCY STABILIZATION; TRANSMISSION; MULTIPLEXER; LASERS;
Keywords:
WDM; wavelength stabilization; dithering; AWG multiplexer; EA modulator;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
14
Recensione:
Indirizzi per estratti:
Indirizzo: Horiuchi, Y KDDI R&D Labs Inc, Kamifukuoka, Saitama 3568502, Japan KDDI R&D Labs Inc Kamifukuoka Saitama Japan 3568502 02, Japan
Citazione:
Y. Horiuchi et al., "Wavelength stabilization technique using dithering-induced AM cancellationfor DWDM systems", IEICE TR CO, E84B(5), 2001, pp. 1145-1152

Abstract

We proposed and demonstrated a novel wavelength stabilization technique for dense wavelength division multiplexing (DWDM) systems using dithering-induced AM cancellation which improves both wavelength stability and data transmission performance. Our wavelength stabilization technique consists of anoptical frequency discriminating function and a function for canceling AM components induced by frequency dithering of the light source. The frequency discrimination in this technique is based on an FM-AM conversion effect, obtained by interaction from frequency dithering of the light with the bandpass characteristic of an arrayed-waveguide grating (AWG) multiplexer. The AM cancellation function was added to suppress optical frequency discriminating errors occurring due to AM components induced by frequency dithering in this wavelength stabilization architecture. In this scheme, an electro-absorption (EA) modulator is employed not only for modulating high-speed datatraffic but also for suppressing AM components induced by frequency dithering on the light signal. Since the EA modulator is usually used for modulating high-speed data traffic, dedicated optical devices are not required forsuppressing the AM components. The wavelength stability of a light source can therefore be enhanced with simple architecture. In the demonstration, areduction of fluctuations within 50 MHz versus changes in the modulation index, and long-term stability within 320 MHz after more than 60 hours was achieved in 10 Gbit/s NRZ transmission. We also confirmed that the proposed AM cancellation technique effectively reduces the transmission penalties due to frequency dithering in 10 Gbit/s NRZ data transmission performance.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 06/04/20 alle ore 01:47:03