Open AccessDynamic line-by-line pulse shaping with GHz update rate
Author(s) -
Mehmetcan Akbulut,
S. Bhooplapur,
İbrahim Özdür,
Josue Davila-Rodriguez,
Peter J. Delfyett
Publication year - 2010
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.18.018284
Subject(s) - optics , pulse shaping , line (geometry) , modulation (music) , pulse (music) , ultrashort pulse , semiconductor laser theory , physics , computer science , laser , acoustics , detector , geometry , mathematics
We introduce a novel scheme for dynamic line-by-line pulse shaping with GHz update rates. Four lines of an optical frequency comb source are used to injection-lock four individual VCSEL, which are subsequently electrically modulated at 0.4 to 1 GHz through current modulation. This concept could be considered a completely new way of pulse shaping as the light is not simply modified, but rather regenerated with the desired properties. We also discuss an important drawback of line-by-line pulse shapers that ultimately limits the modulation speed capability.