Title :
Pump-wavelength dependence of FWM performance in semiconductor optical amplifiers
Author :
Martelli, F. ; D´Ottavi, A. ; Graziani, L. ; Mecozzi, A. ; Spano, P. ; Guekos, G. ; Eckner, J. ; Dall´Ara, R.
Author_Institution :
Fondazione Ugo Bordoni, Rome, Italy
fDate :
6/1/1997 12:00:00 AM
Abstract :
We report on experimental investigation of the dependence on pump-wavelength of efficiency and signal to background ratio of a wavelength converter based on four-wave mixing in a semiconductor optical amplifier (SOA). The signal wavelength has been varied over a 60-nm range at fixed signal-converted detuning. Both efficiency and background level increase by moving the operation wavelength toward bandgap. Nevertheless, we observe a variation of the signal to background ratio of only 2 dB in a 40-nm range. A qualitative interpretation of the results is presented.
Keywords :
laser tuning; multiwave mixing; optical frequency conversion; optical pumping; optical transmitters; semiconductor lasers; wavelength division multiplexing; FWM performance; background level; four wave mixing; four-wave mixing; operation wavelength; pump-wavelength dependence; qualitative interpretation; semiconductor optical amplifier; semiconductor optical amplifiers; signal to background ratio; signal wavelength; signal-converted detuning; wavelength converter; Frequency conversion; Optical fiber communication; Optical frequency conversion; Optical mixing; Phase modulation; Semiconductor device noise; Semiconductor optical amplifiers; Time division multiplexing; Wavelength conversion; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
