Title :
Experimental Characterization of SOA-Based Wavelength Converters for DPSK Signals
Author :
Gupta, S. ; Calabretta, N. ; Contestabile, G. ; Ciaramella, E. ; Gangopadhyay, R.
Author_Institution :
Dept. of Electron. & Electr. Commun. Eng., Indian Inst. of Technol., Kharagpur
Abstract :
We report a detailed experimental characterization of the wavelength conversion of 10 Gb/s non-return-to-zero differential phase shift keying (NRZ-DPSK) optical signals based on four wave mixing (FWM) in a semiconductor optical amplifier (SOA). The performance of this coherent wavelength converter is compared with theoretical results and found to perform better, in terms of extended range of signal-to-pump ratio (SPR) with lower power penalty, than conventional on-off keying (OOK) and return-to-zero DPSK (RZ-DPSK) signals due to its constant envelope and inherent immunity to data pattern fluctuations.
Keywords :
differential phase shift keying; multiwave mixing; optical modulation; optical wavelength conversion; semiconductor optical amplifiers; 10 Gbit/s; DPSK signals; OOK; SOA; data pattern fluctuations; four wave mixing; non-return-to-zero differential phase shift keying; on-off keying; semiconductor optical amplifier; signal-to-pump ratio; wavelength converters; Differential quadrature phase shift keying; Modulation; Optical interferometry; Optical noise; Optical packet switching; Optical receivers; Optical wavelength conversion; Semiconductor optical amplifiers; Signal to noise ratio; Wavelength conversion;
Conference_Titel :
Communications and Networking in China, 2006. ChinaCom '06. First International Conference on
Conference_Location :
Beijing
Print_ISBN :
1-4244-0463-0
Electronic_ISBN :
1-4244-0463-0
DOI :
10.1109/CHINACOM.2006.344666
