Title :
Wavelength conversion using an integrated DFB laser-phase shifter
Author :
Fisher, M. ; Chuang, S.L.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Illinois, Urbana, IL, USA
Abstract :
A method of wavelength conversion with signal reshaping (2R regeneration) is proposed based on injection of probe light into an integrated distributed feedback laser-phase shifter. The conversion is based on optically induced mode hopping between the two dominant modes of the laser. The wavelength hop is extremely discrete, leading to a significant improvement in extinction ratio of greater than 25 dB under static conditions. This gives rise to excellent signal reshaping potential. The mode hop can be induced by probe light varying from 1480 to 1580 nm, showing the large conversion bandwidth of this scheme. We also observe optical bistability in our experiment.
Keywords :
distributed feedback lasers; integrated optics; laser modes; optical bistability; optical modulation; optical phase shifters; optical repeaters; optical wavelength conversion; phase modulation; 1480 to 1580 nm; 2R regeneration; cross-phase modulation; dynamic performance; extinction ratio; integrated DFB laser-phase shifter; optical bistability; optically induced mode hopping; polarization controller; probe light injection; signal reshaping; wavelength conversion; Bandwidth; Distributed feedback devices; Extinction ratio; Laser feedback; Laser modes; Optical bistability; Optical feedback; Optical wavelength conversion; Probes; Ultraviolet sources;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2003.819400
