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40-gb/s burst-mode optical 2R regenerator

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5 Author(s)
Sato, R. ; NTT Photonics Labs., NTT Corp., Atsugi, Japan ; Ito, T. ; Shibata, Y. ; Ohki, A.
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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.

Published in:

Photonics Technology Letters, IEEE  (Volume:17 ,  Issue: 10 )

Date of Publication:

Oct. 2005

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