Title :
Heterodyne detection of CPFSK signals with and without wavelength conversion up to 5 Gb/s
Author :
Pedersen, R.J.S. ; Ebskamp, F. ; Mikkelsen, B. ; Durhuus, T. ; Öberg, M. ; Nilsson, S.
Author_Institution :
Electromagn. Inst., Tech. Univ. of Denmark, Lyngby, Denmark
Abstract :
Detection of wavelength converted signals by a coherent continuous-phase frequency-shift-keying receiver is reported. The signals are wavelength converted over 35 nm, and record receiver sensitivities of -38.7 dBm at 4.0Gb/s and -35.6 dBm at 4.8Gb/s are obtained. Comparison between results with and without wavelength conversion, relative to theory, shows a small penalty of less than 1.5dB.<>
Keywords :
demodulation; frequency shift keying; optical modulation; optical receivers; sensitivity; 4 Gbit/s; 4.8 Gbit/s; 5 Gbit/s; CPFSK receiver; CPFSK signals; coherent continuous-phase frequency-shift-keying receiver; heterodyne detection; penalty; receiver sensitivities; wavelength conversion; wavelength converted signals; Bit error rate; Distributed Bragg reflectors; Fiber lasers; Frequency division multiplexing; Laser tuning; Optical attenuators; Optical modulation; Optical wavelength conversion; Signal detection; Wavelength conversion;
Journal_Title :
Photonics Technology Letters, IEEE
