Open AccessAll-optical, wavelength and bandwidth preserving, pulse delay based on parametric wavelength conversion and dispersion
Author(s) -
Jay E. Sharping,
Yoshitomo Okawachi,
James van Howe,
Chris Xu,
Yan Wang,
Alan E. Willner,
Alexander L. Gaeta
Publication year - 2005
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/opex.13.007872
Subject(s) - optics , zero dispersion wavelength , picosecond , wavelength , bandwidth (computing) , group delay and phase delay , multi mode optical fiber , dispersion (optics) , bandwidth limited pulse , materials science , optical fiber , physics , ultrashort pulse , telecommunications , computer science , laser , plastic optical fiber
We demonstrate an all-optical tunable delay in fiber based on wavelength conversion, group-velocity dispersion, and wavelength reconversion. The device operates near 1550 nm and generates delays greater than 800 ps. Our delay technique has the combined advantages of continuous control of a wide range of delays from picoseconds to nanoseconds, for a wide range of signal pulse durations (ps to 10 ns), and an output signal wavelength and bandwidth that are the same as that of the input. The scheme can potentially produce fractional delays of 1000 and is applicable to both amplitude- and phase-shift keyed data.