Title :
Transient response of MS-DFB amplifier-filters
Author :
Nakajima, H. ; De Faria, I.F., Jr.
Author_Institution :
Centre Nat. d´´Etudes des Telecommun., France Telecom, Bagneux, France
Abstract :
Time and spectral responses of a tunable three-contact distributed feedback (DFB) amplifier-filter obtained by feeding 50-ps optical pulses show the generation of a slow exponential falling tail ( approximately= 200 ps) in the output signal when the input pulses are spectrally narrowed. This phenomenon should limit the transfer bit rate of wavelength-filtered signals.<>
Keywords :
distributed feedback lasers; optical communication equipment; optical filters; semiconductor lasers; transient response; 200 ps; 50 ps; DFB amplifier-filter; MS-DFB amplifier-filters; input pulses; optical pulses; output signal; slow exponential falling tail; spectral responses; spectrally narrowed; time responses; transfer bit rate; transient response; tunable three-contact distributed feedback amplifier-filter; wavelength-filtered signals; Distributed amplifiers; Distributed feedback devices; Optical amplifiers; Optical pulse generation; Optical pulses; Probability distribution; Pulse amplifiers; Semiconductor optical amplifiers; Signal generators; Transient response;
Journal_Title :
Photonics Technology Letters, IEEE
