Title :
Fast 2R regeneration by coherent laser amplifiers
Author :
Oksanen, Jani ; Tulkki, Jukka
Author_Institution :
Dept. of Electr. & Commun. Eng., Helsinki Univ. of Technol., Finland
Abstract :
A new device concept based on coherent processing of optical signals and allowing generation of ultrafast all-optical functions is introduced. The device is modeled by rate equations and its functionality is demonstrated by studying the re-amplification and re-shaping (2R) regeneration of a 30-GHz signal in detail. The main components of the regenerator are phase-locked lasers, optical isolators and band pass filters. Small signal analysis of the model predicts that bandwidths in excess of 100 GHz might be attainable. The technological feasibility of the device is also discussed.
Keywords :
band-pass filters; laser mode locking; light coherence; optical filters; optical information processing; optical isolators; optical pulse generation; optical pulse shaping; semiconductor optical amplifiers; 2R regeneration; 30 GHz; band pass filters; coherent amplifiers; laser amplifiers; optical isolators; phase-locked lasers; rate equations; reamplification; reshaping regeneration; semiconductor laser; small signal analysis; ultrafast all-optical functions; Equations; Laser modes; Optical amplifiers; Optical devices; Optical filters; Repeaters; Signal generators; Signal processing; Stimulated emission; Ultrafast optics; Coherent optics; function generation; optical isolators; optical regeneration; semiconductor laser;
Journal_Title :
Quantum Electronics, IEEE Journal of
DOI :
10.1109/JQE.2005.851244
