Title :
All-Optical Conversion From RZ to NRZ Using Gain-Clamped SOA
Author :
Silveira, T.G. ; Teixeira, A. ; Beleffi, G. Tosi ; Forin, D. ; Monteiro, P. ; Furukawa, H. ; Wada, N.
Author_Institution :
Siemens Networks S.A, Amadora
fDate :
3/15/2007 12:00:00 AM
Abstract :
An all-optical converter from return-to-zero (RZ) pulses to the nonreturn-to-zero (NRZ) format is presented. The converter operates in two stages: the laser generated in a gain-clamped semiconductor optical amplifier (SOA) is modulated with the data signal; afterwards this signal is wavelength-converted by cross-gain modulation in a common SOA. The setup is noninverting and can feature wavelength conversion. Experimental error-free conversion from 5- and 40-ps RZ pulses to NRZ format is presented at 10 Gb/s using a 211-1 bit sequence
Keywords :
optical communication equipment; optical fibre communication; optical modulation; optical wavelength conversion; semiconductor optical amplifiers; 10 Gbit/s; 40 ps; 5 ps; all-optical conversion; all-optical converter; bit sequence; cross-gain modulation; data signal; error-free conversion; gain clamping; nonreturn-to-zero format; nonreturn-to-zero pulses; optical modulation; return-to-zero format; return-to-zero pulses; semiconductor optical amplifier; wavelength conversion; Charge carrier density; Optical filters; Optical interferometry; Optical pulse shaping; Optical pulses; Optical signal processing; Optical wavelength conversion; Power lasers; Pulse amplifiers; Semiconductor optical amplifiers; Format conversion; gain-clamped semiconductor optical amplifier (GC-SOA); reshaping; wavelength conversion (WC);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2007.891643
