Title :
40-gb/s burst-mode optical 2R regenerator
Author :
Sato, Rieko ; Ito, Toshio ; Shibata, Yasuo ; Ohki, Akira ; Akatsu, Yuji
Author_Institution :
NTT Photonics Labs., NTT Corp., Atsugi, Japan
Abstract :
We have developed a 40-Gb/s burst-mode all-optical 2R regenerator using a limiting amplifier and a monolithic integrated wavelength converter. A limiting amplifier using a gain-saturated semiconductor optical amplifier with an inverted-mode signal can mitigate the pattern effect caused by the a burst-mode signal. By using this 2R regenerator, the 8-dB packet-to-packet power fluctuation of a return-to-zero (RZ) format signal was successfully equalized and the bit-error rate was greatly improved. In addition, we confirmed that a nonreturn-to-zero format signal was equalized by the limiting amplifier as well as the RZ format signals.
Keywords :
error statistics; laser modes; optical fibre communication; optical limiters; optical modulation; optical repeaters; optical wavelength conversion; semiconductor optical amplifiers; 40 Gbit/s; bit-error rate; burst-mode all-optical 2R regenerator; gain-saturated semiconductor optical amplifier; inverted-mode signal; limiting amplifier; packet-to-packet power fluctuation; return-to-zero format signal; signal equalization; wavelength converter; Fiber nonlinear optics; High speed optical techniques; Optical filters; Optical receivers; Optical saturation; Optical signal processing; Optical wavelength conversion; Repeaters; Semiconductor optical amplifiers; Stimulated emission; All-optical 2R regenerator; burst-mode; cross-gain modulation (XGM); inverted-mode signal; limiting amplifier; packet-to-packet power fluctuation; pattern effects; semiconductor optical amplifier (SOA); wavelength converter;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2005.856364
