Title :
40-Gb/s NRZ wavelength conversion with 3R regeneration using an EA modulator and SOA polarization-discriminating delay interferometer
Author :
Chung, Hwan Seok ; Inohara, Ryo ; Nishimura, Kohsuke ; Usami, Masashi
Author_Institution :
Opt. Commun. Res. Center, Electron. & Telecommun. Res. Inst., Daejon, South Korea
Abstract :
We propose and demonstrate, for the first time, to our knowledge, a 40-Gb/s nonreturn-to-zero wavelength converter with 3R regeneration based on an electroabsorption modulator and semiconductor optical amplifier polarization-discriminating delay interferometer. The results show that the root mean square timing jitter and optical signal-to-noise ratio (OSNR) of the regenerated signal are kept to 0.68 ps and higher than 40 dB/0.1 nm, respectively. In addition, the measured receiver sensitivity (BER=10-9) is improved from -19 to -25.2 dBm at the input OSNR of 26 dB/0.1 nm.
Keywords :
electro-optical modulation; electroabsorption; light interferometers; optical receivers; optical repeaters; optical wavelength conversion; semiconductor optical amplifiers; timing jitter; 0.68 ps; 3R regeneration; 40 Gbit/s; EA modulator; NRZ wavelength conversion; SOA; electroabsorption modulator; nonreturn-to-zero wavelength converter; optical signal-to-noise ratio; polarization-discriminating delay interferometer; receiver sensitivity; root mean square timing jitter; semiconductor optical amplifier; Optical interferometry; Optical modulation; Optical polarization; Optical receivers; Optical signal processing; Optical wavelength conversion; Propagation delay; Repeaters; Semiconductor optical amplifiers; Signal to noise ratio; 3R regeneration; All-optical devices; nonreturn-to-zero (NRZ); semiconductor optical amplifiers (SOA); wavelength converter;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2005.861963
